Society of Glass Technology

Volume I 1917

Journal of the Society of Glass Technology Volume I 1917

Proceedings pages are numbered separately from Transactions pages.

PROCEEDINGS
The Inaugural Meeting	3
Obituary, J. James Hirst	23
Second Conference on Refractories Research and Standardisation	27

TRANSACTIONS
British Glass Sands: Their Location and Characteristics P.G.H. Boswell, DSc, FGS	3
British Glass Making Sands. Part I. The Substitution of Some British Sands for Foreign Sands in the Manufacture of High Grade Glass C.J. Peddle, MSc	27
The Annealing of Glass F Twyman	61
Some Remarks about the Development of Glass Furnaces on the Continent and a Description of the Hermansen Furnace Theodore Teisen, BSc	74
V The Influence of Small quantities of Chlorides and Sulphate in Producing Opalescence in Glass J.D. Cauwood, MSc, and W.E.S. Turner, DSc	87
The Application of Machinery and Labour-saving Devices to Glass Manufacture A. M. Rowland	97
Machinery and Labour-saving Devices in the Glass Bottle Trade - The Owens Devices George E. Alexander	105
The General Characteristics and Sources of Supply of the Refractory Materials Required in the Glass Industry W. G. Fearnsides, MA, FGS, MInstME	109
Notes on some Fireclays and Refractory Stone Used in the Glass Industry. J. H. Davidson, MSc	126
Some Notes on the Refractories Required in the Glass Industry. Walter Rosenhain, DSc, FRS	130
Glass Industry Refractories with Special Reference to Tank Furnaces Cosmo Johns	137
Some General Observations on Glass Sir Herbert Jackson, KBE, FRS, FIC	140
The Action of Sodium Hydroxide Solution on Glass at Different Temperatures G. W. Westcott Way, BSc, J. D. Cauwood, MSc, and W. E. S. Turner, DSc	144
Notes on American High-Grade Glass Sands P. G. H. Boswell, ARCS, DSc, FGS	147
The Attack of Chemical Reagents on Glass Surfaces, and a Comparison of Different Types of Chemical Glassware J. D. Cauwood, MSc, S. English, MSc, and W. E. S. Turner, DSc	153
The Use of Semi-automatic Glass Making Machinery in America Robert E. McCauley	203
Some Common Problems in Melting and Working Glass I. The Substitution of Saltcake by Soda II. The Relative Sizes of Gas and Air Ports W. E. S. Turner, DSc	210
A Bibliographical Contribution towards the Study of the Durability of Glass W. E. S. Turner, DSc	213
Gas Firing and the Glass Industry J. W. Cobb, BSc, FIC	223

Volume II 1918

Journal of the Society of Glass Technology Volume II 1918

Page

Society of Glass Technology

i

List of Officers for 1918

ii

List of Abbreviations Employed by the Journal

iii

PROCEEDINGS OF THE SOCIETY OF GLASS TECHNOLOGY

Proceedings of the Twelfth Meeting

1

Proceedings of the Thirteenth Meeting

3

Proceedings of the Fourteenth Meeting

5

Proceedings of the Fifteenth Meeting

7

The Annual General Meeting, 1918

9

Proceedings of the Seventeenth Meeting

16

“The Founding of an English Technical Glass Society”

18

Proceedings of the Eighteenth Meeting

19

Obituary: Alfred Sherwood Esslemont, CBE, AMIEE

21

Proceedings of the Nineteenth Meeting

23

Proceedings of the Twentieth Meeting

26

Report of the Refractories Research and Specifications Committee

28

Obituary: Marquis de Mos and William Robinson

35

TRANSACTIONS

I An Account of a New Blowpipe Burner Using Preheated Gas Mixture
By W. A. Whatmough, BSc

3

II Glass-making at Bolsterstone, near Sheffield, from about AD 1650 to 1750 By Joseph Kenworthy

5

III Some Notes on Pot Failure
By S. N. Jenkinson

13

IV Some Notes on American Methods and Practice in the Glass Industry
By H. H. Pitt

19

V A New Variable Jet Blowpipe
By S. English, MSc

30

VI The Resistant Power of Heavy Lead-potash Glass to Chemical Agents
By J. D. Cauwood, MSc, W. E. S. Turner, DSc and Duncan Webb

32

VII British Supplies of Potash-felspar, Considered from the Glass-making Point of View
By Professor P. G. H. Boswell, DSc, FGS

35

VIII A Brief Review of the Present Position of the British Glass Industry. Presidential Address
By W. F. J. Wood, BSc, FIC

72

IX Note on a Coke Producer Gas Fired Glass Tank for the Production of White Glass
By A. B. Roxburgh

82

X A Blowpipe with Preheated Gas and Air
By S. English, MSc

88

XI Some Notes on the Annealing of Glass
By Solomon English, MSc and W. E. S. Turner, DSc

90

XII The Glass Industry After the War (A general discussion) Part I in London

102

Part II Discussion resumed in Sheffield

135

“Some Notes on Pot Failure” Communicated Discussion

153

“Some Notes on the Annealing of Glass” Communicated Discussion

154

The Second Annual Report of the Delegacy for Glass Research, University of Sheffield

155

XIII Note on the Firing of Glass Pots
By Morris W. Travers, DSc, FRS

171

XIV Some Additional Notes on Pot Failure
By S. N. Jenkinson and Percival Marson

175

XV Notes on the Formation of Certain Rock Forming Minerals in and about Glass Furnaces
By G. V. Wilson, BSc, FGS

177

XVI A Simple Method of Rapidly and Accurately Calibrating Pipettes
By S. English

216

XVII The Resistant Properties of some Types of Foreign Chemical Glassware
By J. D. Cauwood, MSc and W. E. S. Turner, DSc

219

XVIII The Effect of the Continued Action on Chemical Glassware of Water, Acid and Alkali
By J. D. Cauwood, MSc and W. E. S. Turner, DSc

235

“A Simple Method of Rapidly and Accurately Calibrating Pipettes” Communicated Discussion

XIX Some Incidental Notes of a Flint-glass Works Manager from 1875–1916
By Harry J. Powell

XX Note on the Determination of Boric Oxide in Glass By J. D. Cauwood, MSc and T. E. Wilson, BSc

XXI Silica Refractories for Glassworks’ Use
By W. J. Rees, FIC

240

241

246

253

XXII The Effect of Temperature on the Rate of Corrosion of Glass
By J. D. Cauwood, MSc and W. E. S. Turner, DSc

260

XXIII Refractory Materials and the Glass Industry
Prof. J. W. Cobb, CBE, BSc, FIC

262

“Note on the Firing of Pots” Addendum

270

XXIV The Requirement of Clay for Glasshouse Pots
By S. N. Jenkinson

272

XXV Note on the Solubility of Clay in Glass
By J. H. Davidson, MSc and W. E. S. Turner, DSc

280

XXVI Notes on Pot Attack
By E. A. Coad-Pryor

285

Discussion of the Preceeding Five Papers

Abstracts and Reviews

288

Volume III 1919

Journal of the Society of Glass Technology 1919

Page
Society of Glass Technology	i
List of Officers for 1919-20	ii
List of Abbreviations Employed by the Journal	iii
PROCEEDINGS OF THE SOCIETY OF GLASS TECHNOLOGY
Proceedings of the Twenty-First Meeting	1
Proceedings of the Twenty-Second Meeting	2
Proceedings of the Twenty-Third Meeting	4
Bye-Laws for Branches of the Society Abroad	6
Report to the council from the Refractories Research and Specifications Committee	7
Obituary: Edwin Hopkinson	12
Proceedings of the Twenty-Fourth Meeting	13
Proceedings of the Second Annual General Meeting,	15
Proceedings of the Twenty-Sixth Meeting	24
Proceedings of the Twenty-Seventeenth Meeting	27
Obituary: Sir William Crookes	29
The Committee for the Standardisation of Glass and Glassware	31
Report of the Committee on the Standardisation of Laboratory Glassware	32
Proceedings of the Twenty-Eighth Meeting	49
Proceedings of the Twenty-Nineth Meeting	51
Proceedings of the Thirtieth Meeting	53
Presentations to Mr Wood and Dr Turner	55
TRANSACTIONS
I Provisional Specifications for Glass Refractories By The Refractories Research and Specifications Committee of the Council	3
II Manufacturing Costs in the Glass Industry By J. Dearden Mills	14
III A Costing System for a Glass Bottle Factory By F. Sweeting	27
IV An Apparatus for the Accurate Calibration of Burette Tubes By S. English, MSc, AIC	34
V Bottle-glass and Glass-bottle Manufacture By W. E. S. Turner, DSc	37
Our Ideal. An Appeal for Continued Co-operation. Presidential Address By S. N. Jenkinson, MBE	50
VI The Examination of Optical Glass in Relation to Weathering Properties By Alfred Vincent Elsden, Oswald Roberts and Harold Spencer Jones	52
VII Some Experiments with a Gas-fired Pot Furnace By Morris W. Travers, DSc, FRS	70
VIII the Exploitation of Glass-sands in the United States of America By Professor P. G. H. Boswell, DSc	72
IX The Preparation of Raw Materials for and the Manufacture of Glass-house Pots By B. J. Allen	78
X Some Phenomena of Pot-Attack By Walter Rosenhain, BA, DSc, FRS	93
XI The Relations between Tridymite and Crystobalite By Clarence N. Fenner	116
XII The Annealing Temperatures of the Lime-Soda Glasses By S. English, MSc and W. E. S. Turner, DSc	125
XIII Further Investigations on Chemical Glassware By Constance M. M. Muirhead, BSc and W. E. S. Turner, DSc	129
XIV The year’s Progress in Glass Research under the Auspices of the Glass Research Delegacy By W. E. S. Turner, DSc	132
XV Some German Glassworks in March and April, 1919 By S. N. Jenkinson	144
XVI Note on the Preliminary Firing of Tank Furnaces By Elbert E. Fisher	147
XVII Some Recent Improvements in the Designs of Glassworks Furnaces and Gas Producers By J. S. Atkinson	148
XVIII The Glass Industry of North America By W. E. S. Turner, DSc	166
XIX The Reversible Expansion of Refractory Materials By H. J. Hodsman, MSc, FIC and Prof. J. W. Cobb, CBE, BSc, FIC	201
XX The Properties of Lime-soda Glasses By J. H. Davidson MSc and W. E. S. Turner, DSc	222
XXI The Durability of Lime-Soda Glasses By J. D. Cauwood, MSc, AIC, J. R. Clarke, MSc, Constance M. M. Muirhead, BSC and W. E. S. Turner, DSc	228
XXII The Heat Expansion of Soda-Lime Glasses By S. English, MSc, AIC and W. E. S. Turner, DSc	238
XXIII The Manufacture of Table Ware in Tank Furnaces By R. L. Frink	242
XXIV A Proposed Standard Formula for a Glass for Lamp-workers By F. W. Branson, FIC and F. H. Branson, AIC	249
XXV Glass for Table Working By M. W. Travers, DSc, FRS	253
XXVI the Polariscope and its Application to the Glass Industry By G. V. Wilson, BSc	257
XXVII A Simple Apparatus for the Detection of Strain in Glass By S. English, MSc	258
XXVIII The Influence of Lime on the Value of Young’s Modulus of Elasticity for the Lime-soda Glasses By J. R. Clarke, MSc and W. E. S. Turner, DSc	260
XXIX Some Experiments on Glass for Lamp-working Purposes By J. D. Cauwood, MSc, J. H. Davidson, MSc, F. W. Hodkin, BSc and W. E. S. Turner, DSc	266
XXX Magnesia-Soda Glasses By J. H. Davidson, MSc, F. W. Hodkin, BSc and W. E. S. Turner, DSc	275
XXXI The Annealing Temperature of Magnesia-soda Glasses By S. English, MSc, AIC and W. E. S. Turner, DSc	278
XXXII Note on the Formation of Glass By S. C. Bradford, BSc	282
Abstracts and Reviews

Volume IV 1920

Journal of the Society of Glass Technology Volume IV 1920

Proceedings pages are numbered separately from Transactions pages.

TRANSACTIONS
THE SOCIETY'S VISIT TO AMERICA
List of Persons attending Banquet of the American Ceramic Society and the Society of Glass Technology	1
PAPERS
The Development of Various Types of Glass. Part I. The, Interaction of Silica with the Oxides of Sodium and Potassium	3
C. J. PEDDLE, DSc.
The Development of Various Types of Glass. Part Ill. The Interaction of Silica, Lime and Potassium Oxide	20
By C. J. PEDDLE, DSc.
The Development of Various Types of Glass. Part IV. The Interaction of Silica, Lime, and the Oxides of Sodium and Potassium	46
C. J. PEDDLE, DSc.
The Development of Various Types of Glass. Part V. A Comparison of the Soda-Lime-Silica and the Potash-Lime-Silica Glasses	59
C. J. PEDDLE, DSc.
A Suggested Improvement in the Manufacture of Glass-house Pots	71
LIEUT.-COL. C. W. THOMAS
The Optical Properties of some Lime-Soda Glasses	107
J. R. CLARKE, MSc., and W. E. S. TURNER, DSc.
The Thermal Expansion of Magnesia-Containing Glasses	111
S. ENGLISH, MSc., and W. E. S. TURNER DSc.
The Comparative Effects of Soda and Potash in Lead Glass for Table Ware	115
F. W. HODKIN, BSc., and W. E. S. TURNER, DSc.
The Density of the Soda-Lime Glasses	120
S. ENGLISH, MSc., and W. E. S. TURNER, DSc.
The Preservation of Glass Furnace Refractories Water Cooling	126
E. B. CHRISTMAS
Note on the Tensile Strength of Refractory Materials	128
M. W. TRAVERS, DSc., F.R.S.
The Casting of Pots for Use in Experimental Work on Optical Glass	168
ALICE B. TAYLOR
The Density of Soda-Magnesia Glasses	140
S. ENGLISH, MSc., and W. E. S. TURNER, DSc.
The Discoloration produced by Lead, Antimony, and Arsenic in Lampworked Glass Tubing	153
F. W. HODKIN, BSc., and W. E. S. TURNER, DSc.
The Composition, Drying and Firing Shrinkage, Porosity, and Density of British Fireclays suitable for Glass	158
Furnace Refractory Materials
EDITH M. FIRTH, BSc., F. W. HODKIN, BSc., and W. E. S. TURNER, DSc.	162
On a New Type of Gas-fired Furnace
M. W. TRAVERS, DSc., F.R.S.	205
The Development of Optical Glass during the War.
C. J. PEDDLE; DSc.	225
The Composition, Drying and Firing Shrinkage, Porosity, and Density of British Fireclays suitable for Glass
Furnace Refractory Materials (Discussion)	239
EDITH M. FIRTH, BSc., F. W. HODKIN, BSc., A.I.C., and W. E. S. TURNER, DSc.
The Casting of Pots for Use in Experimental Work on Optical Glass (Reply to discussion)	251
ALICE B. TAYLOR
The Factory Inspection of Glassware	253
W. E. S. TURNER, DSc.
A Device for Measuring the Internal Diameter of Glass Tubing	261
VERNEY STOTT, B.A.
The Shrinkage, Porosity, and Other Properties of a China Clay after being Fired at various Temperatures.	264
EDITH M. FIRTH, BSc., F. W. HODKIN, BSc., A.I.C., and W. E. S. TURNER, DSc.
The Human Factor in Industry	267
GEORGE, H. MILES, DSc.
Note on the Density of Soda-Magnesia Glasses.	281
C. J. PEDDLE, DSc., F.I.C.
On certain Surface Effects in Glass, probably produced by Reheating in the Glory Hole	284
MORRIS W. TRAVERS, DSc., F.R.S.
Some Developments in the Study of Glass Technology in the Year 191.9-29	287
W. E. S. TURNER, DSc.
Automatic Feeding Devices for Glass-Making Machinery	296
HOMER BROOKE
The Development of Various Types of Glass. Part VI. The Interaction of Silica, Lead Oxide, and Sodium Oxide	299
C. J. PEDDLE, DSc.
The Development of Various Types of Glass. Part VII. The Interaction of Silica, Lead Oxide, and Potassium Oxide.	310
C. J. PEDDLE, DSc.
The Development of Various Types of Glass. Part VIII. The Interaction of Silica, Lead Oxide, and the Oxides of Sodium and Potassium	320
C. J. PEDDLE, DSc.
The Development of Various Types of Glass. Part IX. A Comparison of the Soda-Lead Oxide-Silica and the Potash-Lead Oxide-Silica Glasses	330
C. J. PEDDLE, DSc.
Lessons from the Visit to America	367
The Rate of Change of Glass Composition in a Tank Furnace following a Change in the Batch Composition	382
JOHN CURRIE, M.A.
The Influence of Silica on the Annealing Temperature of Glass	387
S. ENGLISH, MSc., F. W. HODKIN, BSc., CONSTANCE M. M. MUIRHEAD, BSc., and W. E. S. TURNER, DSc.
The Effect of Added Felspar on the Shrinkage and Porosity of Aluminous Fireclays after being Fired at High Temperatures	392
EDITH M. FIRTH, BSc., and W. E. S. TURNER, DSc.

Volume V 1921

Journal of the Society of Glass Technology Volume V 1921

Proceedings pages are numbered separately from Transactions pages.

TRANSACTIONS
Visit to the Works of Messrs. Lemington Glassworks, Ltd.
Visit to the Works of Messrs. Rockware Glass Syndicate, Ltd., Greenford
PAPERS
The Nomenclature of Glasses	3
C. J. PEDDLE, DSc.,
The Reversible Thermal Expansion of Fireclay and other Refractory Materials	16
H. S. HOULDSWORTH, MSc., and Prof. JOHN W. COBB, C.B.E., BSc., F.I.C.
The Re-annealing of Glass	44
W. A. WHATMOUGH, BSc., A.I.C.
Examination of Glass by Polarised Light	57
Prof. SE IJI NAKAMURA
On the Clouding of Table-working Glass Tubing in the Blowpipe Flame	61
MORRIS W. TRAVERS, DSc., F.R.S.
The Development of Various Types of Glass. Part X. A Comparison of the Alkali-Lime-Silica and the Alkali-Lead Oxide-Silica Glasses	72
C. J. PEDDLE, DSc., F.I.C.
The Influence of Aluminium on the Properties of Glass	107
VIOLET DIMBLEBY, BSc., F. W. HODKIN, BSc., A.I.C., and Prof. W. E. S. TURNER, DSc.
The Effect of Aluminium on the Annealing Temperature of Glass	115
S. ENGLISH, MSc., and Prof. W. E. S. TURNER, DSc.
Note on some Optical Properties of the Sodium-Aluminium-Trisilicate Glasses	119
J. R. CLARKE, MSc. and Prof. W. E. S. TURNER, DSc.
The Effect of Silica and Sodium Oxide on the Thermal Expansion of Glasses	121
S. ENGLISH, MSc., and Prof. W. E. S. TURNER, DSc.
On the Quantitative Study of Technical Problems in the Glass Industry (Presidential Address)	124
M. W. TRAVERS, DSc., F.R.S.
Automatic Glass Feeding Devices	134
G. DOWSE and EDWARD MEIGH, M.B.E., MSc.
The Effect of the Rays from Radium, X-Rays, and Ultra-violet Rays on Glass	155
J. R. CLARKE, MSc. F.Inst.P.
The Heat Balance of a Plant consisting of an Air-Steam Blown Gas Producer and a Glass Tank Furnace.	166
M. W. TRAVERS, DSc., F.R.S.
The Thermal Expansion of Glasses containing Aluminium	183
S. ENGLISH, MSc., and Prof. W. E. S. TURNER, DSc., F.Inst.P.
The Relative Advantages and Disadvantages of Lime-stone, Burnt Lime, and Slaked Lime as Constituents of Common Glass Batches containing Soda ash and Salt-cake. Part I	188
F. W. HODKIN, BSc., and Prof. W. E. S. TURNER, DSc., F.Inst.P.
The Development of Various Types of Glass. Part XI. The Effect of the Joint Presence of Sodium and Potassium on the Solubility of Lead Glasses	195
C. J. PEDDLE, DSc., F.I.C.
The Development of Various Types of Glass. Part XII. The Interaction of Silica, Sodium Oxide, and Barium Oxide	201
C. J. PEDDLE, DSc., F.I.C.
The Development of Various Types of Glass. Part XIII. The Interaction of Silica, Potassium Oxide and Barium Oxide	212
C. J. PEDDLE, DSc., F.I.C.
The Development of Various Types of Glass. Part XIV. The Interaction of Silica, Barium Oxide, and the Oxides of Sodium and Potassium	220
C. J. PEDDLE, DSc., F.I.C.
The Development of Various Types of Glass. Part XV. A Comparison of the Alkali-Barium Oxide-Silica Glasses	228
C. J. PEDDLE, DSc., F.I.C.
The Development of Various Types of Glass. Part XVI. A Comparison of the Alkali-Barium-Silicate and Alkali-Lead-Silicate Glasses	256
C. J. PEDDLE, DSc., F.I.C.
The Shrinkage, Porosity, and other Properties of British Fireclays after being Fired at High Temperatures.	268
EDITH M. FIRTH, BSc., and W. E. S. TURNER, DSc.
The Density of Glasses containing Aluminium	277
S. ENGLISH, MSc., and W. E. S. TURNER, DSc.
The Heat Balance of a Plant consisting of an Air-Steam Blown Gas Producer and a Glass Tank Furnace (Discussion)	281
M. W. TRAVERS, DSc., F.R.S.
The Application of Oil Fuel in the Glass Industry. (General Discussion)	286
Note on Pipettes	307
VERNEY STOTT, B.A., F.Inst.P.
The Measurement of Small Variations of Refractive Index throughout Meltings of Optical Glass	325
A. J. DALLADAY and F. TWYMAN
Note on the Composition, or the Comparative Composition, of Glasshouse Pots made in the last Fifty Years	330
G. V. EVERS
A Suggested Method for the Determination of the Absolute Viscosity of Molten Glass	337
I. MASSON, M.B.E., DSc., F.I.C., L. F. GILBERT, BSc., A.I.C., and II. BUCKLEY, BSC.
The Relative Advantages and Disadvantages of Limestone, Burnt Lime and Slaked Lime as Constituents of Common Glass Batches, containing Soda ash and Salt-cake (Discussion)	341
F. W. HODKIN, BSc., A.I.C., and W. E. S. TURNER, DSc., F.Inst.P.
Teaching and Research in Glass Technology during 1921	345
W. E. S. TURNER, DSc., F.Inst.P.
Some Properties of Lime-Magnesia Glasses and their Commercial Application. Part I	352
VIOLET DIMBLEBY, BSc., F. W. HODKIN, BSc., and W. E. S. TURNER, DSc.
Some Properties of Lime-Magnesia Glasses and their Commercial Application. Part II	357
S. ENGLISH, MSc., and W. E. S. TURNER, DSc.

Volume VI 1922

Journal of the Society of Glass Technology Volume VI 1922

Proceedings pages are numbered separately from Transactions pages.

TRANSACTIONS
Visit to the Charlton Works of Messrs. United Glass Bottle Manufacturers Ltd.
Visit to the Works of Messrs. E. J. & J. Pearson, Ltd., Stourbridge
Visit to the Works of James Powell & Sons (Whitefriars), Ltd.
Visit to the Works of the Parkgate Iron and Steel Co., Ltd., at Parkgate, Rotherham
Visit to the General Electric Company's Glass Works at Wembley
Presentation of the Frank Wood Medal
PAPERS
The Melting of Glass. General Discussion	3
The Action of Various Analytical Reagents on Chemical Glassware	17
Prof. W. E. S. TURNER, DSc., and T. E. WILSON, BSc.
Solubility and Decomposition in Complex Systems.	20
GEORGE W. MOREY
A Critical Examination of Methods commonly used in Determining the Durability of Glass	30
Prof. W. E. S. TURNER, DSc.
On Apparatus for Controlling the Annealing of Glassware and on Annealing Without Pyrometers.	45
F. TWYMAN
An Examination and Extension of Zulkowski's Theory of the Relation between the Composition and Durability of Glasses	68
WILLIAM L. BAILLIE, F.I.C.
The Effect of Magnesia on the Resistance of Glass to Corroding Agents and a Comparison of the Durability of Lime and Magnesia Glasses	101
VIOLET DIMBLEBY, B.Sc., CONSTANCE M. M. MUIRHEAD, B.Sc., and Prof. W. E. S. TURNER, DSc.
The British Glass Industry: Its Development and Outlook (Presidential Address)	108
Prof. W. E. S. TURNER, D.Sc.
The Melting of Glass. Part II. General Discussion	147
Columnar Structure in Sandstone Blocks	156
JOHN CURRIE, M.A.
The Medieval Glass of York Minster	160
The Very Reverend W. FOXLEY NORRIS, D.D., Dean of York
The Production of Colourless Glass in Tank Furnaces with Particular Reference to the Use of Selenium	168
A. COUSEN, B.Sc., A.I.C., and Prof. W. E. S. TURNER, DSc.
A Critical Review of the Provisional Specifications for Glass Refractory Materials	181
W. J. REES, BSc.Tech., F.I.C.
Some Practical Notes on the Manufacture of Colourless Glass in a Tank Furnace	205
F. W. ADAMS, MSc.
Improvements in Connection with Gas Reversing Valves for Regenerative Furnaces	220
F. W. KNOWLES
The Composition of Lime Suitable for Various Purposes in Glass-making	221
VIOLET DIMBLEBY, BSc., and Prof. W. E. S. TURNER, D.Sc.
The Density of the Soda-Lime-Magnesia Glasses and some Observations on the Calculation of Density	228
S. ENGLISH, MSc., and Prof. W. E. S. TURNER, D.Sc.
On the Devitrification caused upon the Surface of Sheet Glass by Heat	231
Y. AMENOMIYA
Some Observations on the Mixing of Glass Batches in Factories	234
A. W. DICKENSON, VIOLET DIMBLEBY, B.Sc., L. E. NORTON, BSc.Tech., and Prof. W. E, S. TURNER, D.Sc.
The Development of Coloured Glass in England	249
the late HARRY J. POWELL, C.B.E., B.A.
Processes and Methods of Mediaeval Glass Painting.	255
J. A. KNOWLES
The Present Position of the Glass Industry in Czechoslovakia	274
Prof. W. E. S. TURNER, D.Sc.
Some Aspects of the Autoclave Test for Testing the Durability of Glas	279
W. L. BAILLIE, F.I.C.
Some Criticisms on the Use of the Autoclave as a Method of Testing Glassware	289
W. H. WITHEY, B.A.
The Action of Water and Steam under Pressure on some Soda-lime-silicate Glasses	291
F. W. HODKIN, B.Sc., and Prof, W. E. S. TURNER, DSc.

Volume VII 1923

Journal of the Society of Glass Technology Volume VII 1923

Proceedings pages are numbered separately from Transactions pages.

TRANSACTIONS
The Society's Meetings in France
Visit to the New Works of Messrs. J. Powell & Sons (Whitefriars), Ltd.
PAPERS
Improvements in the Design of Recuperative Glass Pot Furnaces	3
TH. TEISEN, BSc.
An Examination of some Current Views on the Detection of Strain in Glass	20
S. ENGLISH, MSc.
The Effect of Various Constituents on the Viscosity of Glass near its Annealing Temperature	25
S. ENGLISH
The Technical Training of Future Leaders for the Glass Industry	46
Prof. W. E. S. TURNER, DSc.
A Study of the Melting and Working Properties of Boric Oxide Glasses, with Special Reference to the Sodium Borosilicates	57
VIOLET DIMBLEBY, B.Sc., F. W. HOD-KIN, B.Sc., M. PARKIN, MSc., and Prof. W. E. S. TURNER
The Influence of Boric Oxide on the Annealing Temperature of Borosilicate Glasses	73
S. ENGLISH, MSc. and Prof. W. E. S. TURNER, DSc.
The Analysis of Glasses Rich in Boric Oxide.	76
VIOLET DIMBLEBY, B.Sc., and Prof. W. E. S. TURNER, DSc.
A Study of the Melting and Working Properties of Boric Oxide Glasses, with Special Reference to the Sodium Borosilicates (Discussion)	80
VIOLET DIMBLEBY, B.Sc., F. W. HODKIN, B.Sc., M. PARKIN, MSc., and Prof. W. E. S. TURNER, DSc.
Organising for Production from Pot Furnaces	83
W. W. WARREN, A.M.I.C.E., A.M.I.E.E.
Tank Furnace Works Organisation	105
T. C. MOORSHEAD
Works Organisation. Managing Men	120
J. CONNOLLY
A Rapid Method of Testing the Durability of Glassware	122
H. S. BLACKMORE, VIOLET DIMBLEBY, B.Sc., and Prof. W. E. S. TURNER, DSc.
Note on the Suitability of Quartzose Residues for Glass Manufacture	130
W. J. REES, BSc.Tech., F.I.C.
The Year in Review in the World of Glass Technology.	132
Prof. W. E. S. TURNER, DSc.
Stainless Steel from the Point of View of the Glass Industry	142
W. H. HATFIELD, DMet.
The Effect of Various Constituents on the Viscosity of Glass near its Annealing Temperature (Discussion)	153
S. ENGLISH, MSc.
The Physical Properties of Boric Oxide containing Glasses and their Bearing on the General Problem of the Constitution of Glass	155
S. ENGLISH, MSc., and Prof. W. E. S. TURNER, DSc.
Notes on Burettes	169
VERNEY STOTT, B.A., F.Inst.P.
On the Refractive Index Changes in Optical Glass occasioned by Chilling and Tempering	199
F. TWYMAN, F.Inst.P., and F. SIMEON, BSc., F.Inst.P.
ome Observations on the Corrosion of Fireclay Materials by Alkali Salts	207
DONALD TURNER, BSc.Tech., and Prof. W. E. S. TURNER, DSc.
On the Corrosion of Fireclay by Alkali-Lead Oxide Glasses	218
EDITH M. FIRTH, BSc., F. W. HODKIN, BSc., DONALD TURNER, BSc.Tech., and Prof. W. E. S. TURNER, DSc.
The Effect of Salt-cake in Soda-Lime Batches in Corroding Fireclay Refractory Materials	228
EDITH M. FIRTH, B.Sc., F. W. HODKIN, B.Sc., and Prof. W. E. S. TURNER, D.Sc.
The Drying Out and Warming Up of Tank Furnaces.	238
C. SAXTON, A.M.I.E.E.
Notes on the Design of Pot Arches	241
TH. TEISEN, BSc., C.E.
Natural Sillimanite as a Glass Refractory Material.	248
S. ENGLISH, MSc.
Natural Sillimanite as a Glass Refractory Material (Discussion)	258
S. ENGLISH, MSc.
On the Refractive Index Changes in Optical Glass occasioned by Chilling and Tempering (Discussion)	262
F. TWYMAN, F.Inst.P., and F. SIMEON, BSc., F.Inst.P.
La Méthode Scientifique dans l'Industrie	263
Prof. HENRY LE CHATELIER
The Scientific Method in Industry	27
Prof. HENRY LE CHATELIER. (Translation by E. D. J. ROBERTSON, B.Sc. Tech.)
Opaque and Coloured Glasses and Ceramic Glazes of the Same Nature	291
ALBERT GRANGER, DSc. (Translation by E. D. J. ROBERTSON, B.Sc. Tech.)
Some Remarks on Technical Education addressed Chiefly to Glass Manufacturers	296
Prof. W. E. S. TURNER, DSc.
The Estimation of Selenium in Glass	303
A. COUSEN, BSc.
The Production of Colourless Glass in Tank Furnaces with Special Reference to the Use of Selenium.	309
A. COUSEN, B.Sc., and Prof. W. E. S. TURNER, DSc.
The Ashley Bottle Machine.	324
S. ENGLISH, MSc.
A New Method of Glass Melting.	334
ALEX. FERGUSON

Volume VIII 1924

Journal of the Society of Glass Technology Volume VIII 1924

Proceedings pages are numbered separately from Transactions pages.

TRANSACTIONS
Exhibition of Special Steels and Non-Ferrous Alloys, and of Tools and Plant made from them
The Visit of the Comité Central des Maîtres de Verreries de France
The Society's Visit to Belgium
Visit to the Works of Messrs. John Lumb & Co., Ltd.
PAPERS
Specifications in the Glass Industry, with Special Reference to Soda-Lime Glasses for Glass Containers	3
Prof. W. E. S. TURNER, DSc.
Note on the Influence of Rapid Cooling on the Reversible Expansion of Fireclay	30
H. S. HOULDSWORTH, MSc.
An Apparatus for Calibrating Burette Tubes	38
VERNEY STOTT, B.A., F.Inst.P.
Some Notes on Pot-clays and the Manufacture, Use, and Treatment of Glass-house Pots	45
PERCIVAL MARSON
The Casting Process for Glasshouse Refractories in German Glass Plants	57
Prof. K. ENDELL, Dr.Phil.
Some Human Factors Affecting Efficiency in the Glass Trade	69
ERIC FARMER, M.A.
Noteworthy Productions of the Glass Craftsman's Art. I. The Reproduction of the Portland Vase	85
JOHN NORTHWOOD
Noteworthy Productions of the Glass Craftsman's Art. JOHN NORTHWOOD'S Plaque of Aphrodite.	92
Prof. W. E. S. TURNER, DSc.
The Use of Pyrometers in the Glass Industry	94
E. A. COAD-PRYOR, B.A.
Continuous High Temperature Measurement in Glass Works	105
WILLIAM M. CLARK, Ph.B.
Practical Applications of Pyrometers to Glass Works.	109
C. E. FOSTER, F.Inst.P.
Some Reflections on Pyrometer Design and a Description of a New Radiation Pyrometer	117
W. BOWEN, A.M.I.E.E., A.M.I.Mech.E.
Recent Advances in the Design of Temperature Measuring Instruments, etc.	124
R. S. WHIPPLE, F.Inst.P.
The Thermal Endurance of Glass. Part I	139
V. H. PAGE STOTT, MSc
The Thermal Endurance of Glass. Part II	148
V. H. STOTT, MSc. and ETHEL IRVINE, BSc.
Alloys Resistant to Heat and Corrosion	150
J. H. G. MONYPENNY, F.Inst.P.
A Note on the Properties of some Alloys of Nickel.	162
W. R. BARCLAY, O.B.E., A.M.I.E.E.
Further Investigations of the Influence of Alumina on the Properties of Glass	173
VIOLET DIMBLEBY, B.Sc., S. ENGLISH, MSc., F. W. HODKIN, B.Sc., and Prof. W. E. S. TURNER, DSc.
The Decay of Window Glass from the Point of View of Lichenous Growths	182
ETHEL MELLOR, Dr. ès Sc.
Some Observations on the Influence of Titania on the Properties of Glass	187
A. R. SHEEN, MSc.Tech., and Prof. W. E. S. TURNER, D.Sc.
The Effect of Composition on the Viscosity of Glass. Part II	205
S. ENGLISH, MSc.
Note on an Unusual Type of Recuperative Tank Furnace	252
F. W. HODKIN, B.Sc., and Prof. W. E. S. TURNER, DSc.
The Work of the Department of Glass Technology during the Year 1923-24	261
Note on the Glasshouses of the Leeds District in the Seventeenth, Eighteenth, and Early Nineteenth Centuries.	268
FRANCIS BUCKLEY
Alumina-Silica Minerals in Glasshouse Pots and Tank-blocks	277
W. J. REES, BSc.Tech., F.I.C.
A Striking Instance of Fireclay Corrosion through the Action of Saltcake.	284
Prof. W. E. S. TURNER, DSc.
The Glass Industry in North America in 1924	286
Prof. W. E. S. TURNER, DSc.

Volume IX 1925

Journal of the Society of Glass Technology Volume IX 1925

Proceedings pages are numbered separately from Transactions pages.

PAPERS
Note on Some Properties of a Sandstone Block after Use in a Glass Furnace	3
H. S. HOULDSWORTH, MSc
On the Viscosity and the Allotropy of Glass	12
Prof. HENRY LE CHATELIER
The Glass Industry of North America in 1924 (Appendix and Discussion)	24
Prof. W. E. S. TURNER, DSc.
A Striking Instance of Fireclay Corrosion through the Action of Saltcake (Discussion)	28
Prof. W. E. S. TURNER, DSc.
Alumina-Silica Minerals in Glasshouse Pots and Tank blocks. (Discussion)	32
W. J. REES, BSc.Tech., F.I.C.
The Early Glasshouses of Bristol.	36
FRANCIS BUCKLEY
A Note on New Ideas for Tank Furnace Design	61
T. TEISEN, BSc.
Some Recent Developments in Furnaces for Glass Works	72
J. S. ATKINSON
The Effect of Composition on the Viscosity of Glass. Part III. Some Four-component Glasses	83
S. ENGLISH, DSc
Some Observations on the Annual Report of the Society for 1924 (Presidential Address)	99
Col. S. C. HALSE, C.M.G.
Glasshouses on the Wear in the Eighteenth Century	105
FRANCIS BUCKLEY
A Note on the Changes of Colour of Selenium Glasses during Annealing or Re-annealing and by Exposure to Light	111
A. COUSEN, MSc., and Prof. W. E. S. TURNER, DSc.
The Production of Colourless Glass in Tank Furnaces, with Special Reference to the Use of Selenium. Part III. The Influence of Arsenious Oxides and other Constituents of the Batch	119
A. COUSEN, MSc., and Prof. W. E. S. TURNER, D.Sc.
Some Notes on Improvements in Gas Producers	127
J. S. ATKINSON
An Attempt to Improve the Qualities of Glasses intended for Lamp-working Purposes	133
Prof. W. E. S. TURNER, DSc.
The Nature and Constitution of Glass	147
Prof. W. E. S. TURNER	166
On Glasses as Supercooled Liquids. By Prof. G. TAMMANN
On the Constitution and Density of Glass	185
Dr. A. Q. TOOL, and E. E. HILL
The Viscosity of Glass	207
V. H. STOTT, MSc.
The Melting Relations of the Soda-Lime-Silica Glasses	226
Dr. G. W. MOREY and Dr. N. L. BOWEN
X-Ray Studies of Soda-Lime-Silica Glasses	265
Dr. R. W. G. WYCKOFF, and Dr. G. W. MOREY
Some Remarks on the Constitution of Glass	267
Dr. F. ECKERT
The Structure of Quartz	272
Sir W. H. BRAGG, F.R.S.
The Glass Bottle Industry and Future Developments (Presidential Address)	282
T. C. MOORSHEAD
Some Properties of Sillimanite Bricks and Kaolin Sillimanite Mixtures	316
H. S. HOULDSWORTH, DSc
Notes on some Old Yorkshire Glasshouses	322
WILFRED R. BARKER
Commercial Sillimanite as a Refractory Material in Glass Making. Part I. The Choice of Bonding Material and of Grain Size	334
ARNOLD COUSEN, MSc., and Prof. W. E. S. TURNER
Commercial Sillimanite as a Refractory Material in Glass-making. Part II. The Porosity, Density and Mechanical Strength of Sillimanite-Ball-clay Mixtures.	347
ARNOLD COUSEN, MSc., and Prof. W. E. S. TURNER
Commercial Sillimanite as a Refractory Material in Glass-making. Part III. Resistance to Corrosion by Glass	357
ARNOLD COUSEN, MSc., S. ENGLISH, DSc., and Prof. W. E. S. TURNER
The Year's Progress in the Department of Glass Technology, Sheffield	372
Prof. W. E. S. TURNER
Some Notes on the Use of Sillimanite in Glass Furnace Practice	383
F. G. CLARK and W. J. REES, BSc.Tech., F.I.C.
The Influence of Boric Oxide on the Properties of Chemical and Heat-resisting Glasses. Part I. The Preparation and Physical Properties of the Glasses	389
Prof. W. E. S. TURNER and FRANCIS WINKS

Volume X 1926

Journal of the Society of Glass Technology Volume X 1926

Proceedings pages are numbered separately from Transactions pages.

TRANSACTIONS
Visit to the Osram-G.E.C. Glass Works and to the Research Laboratories of the General Electric Co., Ltd.
Visit to the Glass Works of the British Thomson-Houston Co., Ltd., Chesterfield
Visit to the Dairies of Messrs. Curtis Bros. & Dumbrill, Ltd. (United Dairies, Ltd.)
PAPERS
The Function of Arsenic in Soda-Lime-Silica Glasses. Part I.	3
EDITH W. FIRTH, BSc., F. W. HODKIN, BSc., M. PARKIN, MSc., and Prof. W. E. S. TURNER
The Devitrification of Soda-Lime-Silica Glasses containing Excessive Amounts of Arsenious Oxide	20
MICHAEL PARKIN, MSc., and Prof. W. E. S. TURNER
Glasshouses on the Tyne in the Eighteenth Century.	26
FRANCIS BUCKLEY
The Effect of Composition on the Viscosity of Glass. Part IV. Calculation of the Influence of Minor Constituents.	52
S. ENGLISH, DSc.
Glass Tank Design. A Criticism.	66
H. W. HOWES, MSc.Tech.
Some Experiments upon the Development of Sillimanite Refractories for Glass Making	73
W. ANGUS MCINTYRE, BSc., A.R.C.Sc.
The Composition of Glass suitable for Use with Automatic Glass-forming Machines.	80
Prof. W. E. S. TURNER
The Nature and Constitution of Glass. (Discussion)	65
The Influence of Boric Oxide on the Properties of Chemical and Heat-resisting Glasses. Part II. The Resistance to Chemical Reagents.	102
Prof. W. E. S. TURNER and F. WINKS, MSc.Tech.
The Influence of Moisture on the Mixing of Batches for Soda-Lime-Silica Glasses.	114
M. PARKIN, MSc., and Prof. W. E. S. TURNER
The Influence of Water on the Rate of Melting and on the Working Characteristics of Soda-Lime-Silica Glasses.	129
EDITH M. FIRTH, BSc., F. W. HODKIN, BSc., M. PARKIN, MSc., and Prof. W. E. S. TURNER
Note on the Devitrification of a Lead Borate Glass	145
C. J. SMITHELLS, M.C., DSc
A Note on Some Factors Governing the Resistance of Pots to Glass Attack.	148
J. F. HYSLOP
Some Remarks upon Recuperative Gas-fired Pot Furnaces in Practice.	154
PERCIVAL MARSON
Refractory Materials for the Glass Industry.-General Discussion	161
The Manufacture of Some Experimental Tank-blocks and their Behaviour in Service.	170
W. ANGUS MCINTYRE, BSc., A.R.C.S.
A Study of Some Effects of Chlorides on the Melting and Working Properties of Potash-Lead Oxide-Silica Glass.	176
EDITH M. FIRTH, BSc., F. W. HODKIN, BSc., CONSTANCE M. MUIRHEAD, BSc., M. PARKIN, MSc., and Prof. W. E. S. TURNER
The Production of Opalescence by Chlorides in Potash -Lead Oxide-Silica Glasses.	199
EDITH M. FIRTH, BSc., F. W. HODKIN, BSc., and Prof. W. E. S. TURNER
The Influence of Moisture on the Mixing of Batches for Potash-Lead Oxide-Silica Glass.	213
M. PARKIN, MSc., and Prof. W. E. S. TURNER
The Effect of Moisture on the Melting, Working, and other Properties of Potash-Lead Oxide--Silica Glasses of	220
the " English Crystal " Type.
EDITH M. FIRTH, BSc., F. W. HODKIN, BSc., M. PARKIN,. MSc., and Prof. W. E. S. TURNER	229
Glass in Early Ages. By Prof. SIR W. FLINDERS PETRIE, LL.D., F.R.S.
A Study of the Rupture of Glass.	234
F. W. PRESTON, Ph.D.
Old Nottingham Glasshouses.	270
FRANCIS BUCKLEY
Opal Glass	274
J. W. RYDE and DORIS E. YATES
The Durability of Glasses and the Peddle Generalisation.	294
OSCAR KNAPP
The Durability of Glasses containing Zinc.	299
W. L. BAILLIE, F.I.C.
The Relationship between Chemical Composition and the Resistance of Glasses to the Action of Chemical Reagents. Part I.	304
VIOLET DIMBLEBY, MSc., and Prof. W. E. S. TURNER
The Resistance of Glass to Chemical Attack.	358
B. P. DUDDING and W. SINGLETON
Glass Melting Experiments with Batch Materials containing Chemically Combined Water.	394
EDITH M. FIRTH, BSc., F. W. HODKIN, BSc., M. PARKIN, MSc., and Prof. W. E. S. TURNER
Some Glasshouse Tests to Determine Differences in the General Characteristics and in the Working Pro-perties of Molten Glass.	374
Prof. W. E. S. TURNER
Cumberland Glasshouses.	384
FRANCIS BUCKLEY
A Ten Years' Retrospect. (Presidential Address	386
W. BUTTERWORTH, Senr., M.A.
The Year's Progress. in the Study of Glass at Sheffield.	398
Prof. W. E. S. TURNER
Some Corrosion and Erosion Phenomena and their Bearing on the Macrostructure of Refractories.	405
J. F. HYSLOP, BSc., R. GUMM, and H. BIGGS
A Note on the X-Ray Patterns of Mullite and Sillimanite.	412
J. F. HYSLOP, BSc., and H. P. ROOKSBY
Some Uses of Commercial Sillimanite in Glass Works.	416
A. COUSEN, MSc., and Prof. W. E. S. TURNER
The Viscous Properties of Glass.	424
V. H. STOTT, MSc.

Volume XI 1927

Journal of the Society of Glass Technology Volume XI 1927

Proceedings pages are numbered separately from Transactions pages.

PAPERS
A Study of the Rupture of Glass. (Discussion)	3
F. W. PRESTON, Ph.D.
Glass Annealing.	10
J. W. FRENCH, DSc.
A Note on Stress Systems and Photo-elastic Phenomena.	23
F. W. PRESTON, PhD
The Economics of the Annealing Process.	30
E. A. CORD-PRYOR, BA.
Heat Losses in Lehr Conveyors.	37
F. A. HURLBUT
Investigation of the Glassy State by the Method of Enforced Crystallisation.	39
Prof. J. F. PONOMAREFF
Transparent Zirconia-containing Glasses.	52
VIOLET DIMBLEBY, MSc., S. ENGLISH, DSc., EDITH M. FIRTH, BSc., F. W. HODKIN BSc., and Prof. W. E. S. TURNER
The Function of Arsenic in Potash-Lead Oxide-Silica Glasses.	65
S. ENGLISH, DSc., EDITH M. FIRTH, BSc., and Prof. W. E. S. TURNER
The Structure and Constitution of Glass.	77
W. ROSENHAIN, DSc., F.R.S.
The Decomposition of Glass by Water at High Temperatures and Pressures.	97
Dr. G. W. MOREY and DR. N. L. BOWEN
Notes on the Glasshouses of Stourbridge, 1700-1830.	106
FRANCIS BUCKLEY
A Critical Survey of the Methods in Use for the Analysis of the Simpler Glasses.	124
W. H. WITHEY, B.A.
Notes on Some Methods used in the Analysis of Glasses.	153
VIOLET DIMBLEBY, MSc.
Notes on the Analysis of Refractories.	172
W. J. REES, BSc.Tech., F.I.C.
The Analysis of Silicate Slags.	177
T. P. COLCLOUGH
The Function of Arsenic in Soda-Lime-Silica Glass. Part II.	190
EDITH M. FIRTH, BSc., F. W. HODKIN, BSc., and PROF. W. E. S. TURNER
The Function of Arsenic in Soda-Lime-Silica Glass. Part III. The Effect of High-temperature Melting.	205
EDITH M. FIRTH, BSc., F. W. HODKIN, BSc., Prof. W. E. S. TURNER and F. WINKS, MSc.Tech.
The Theory and Design of Plate Glass Polishing Machines.	214
F. W. PRESTON, Ph.D., A.M.I.C.E.
The New British 15-arm Automatic Suction Bottle Machine.	257
FRANCIS REDFERN, Jnr
Some Further Developments in Recuperative Glass Furnaces.	265
Th. TEISEN
Some Further Developments in Recuperative Glass Furnaces. (Discussion)	279
Th. TEISEN
On Shooting through Glass with a Rifle.	283
F. W. PRESTON, Ph.D., A.M.I.C.E.
The Glasshouses of Dudley and Worcester.	287
FRANCIS BUCKLEY, F.S.A.
Gaseous Fuels for Furnace Heating.	293
R. WIGGINTON, BSc.
The Properties of Some Soda-Lead Oxide-Silica-Glasses	300
S. ENGLISH, DSc., Prof. W. E. S. TURNER, and F. WINKS, MSc.Tech.
The Development of Glass Melting Furnaces in Recent Times.	303
Prof. W. E. S. TURNER
The Electrical Conductivity of Glasses at High Temperatures.	331
F. F. S. BRYSON, M.A., BSc., F.Inst.P.
The Brittleness of Opal Glass.	347
Prof. G. GEHLHOFF, DPhil. and Dr. M. THOMAS, DPhil.
Further Developments in Recuperative Glass Furnaces. (Discussion)	362
T. TEISEN
Opal Glass. Crystal Growth and Impact Brittleness.	362
J. F. HYSLOR, BSc.
The Birmingham Glass Trade: 1740-1833.	374
FRANCIS BUCKLEY
The Detection of Selenium in Decolorised Bottle Glasses.	386
E. J. C. BOWMAKER, BSc., and J. D. CAUWOOD, MSc.
The Progress of Glass Technology in the year 1926-27 under the Auspices of the Glass Research Delegacy	393
ANON
Stourbridge Fireclays, and the Manufacture of Glasshouse Pots.	400
M. H. EDWARDS
The Homogeneity of Glass Melted in Pots on the Commercial Scale.	407
Mrs. G. A. GREEN and Prof. W. E. S. TURNER
A Survey of the Manufacture and Use of Glasshouse Pots in Great Britain.	415
Prof. W. E. S. TURNER
Some Properties of the Soda-Baryta-Silica Glasses and a Comparison with the Corresponding Soda-Lime-and Soda-Lead Oxide-Silica Glasses.	425
S. ENGLISH, DSc., F.I.C., and Prof. W. E. S. TURNER

Volume XII 1928

Journal of the Society of Glass Technology Volume XII 1928

Proceedings pages are numbered separately from Transactions pages.

PAPERS
The Traction of Glass Polishing.	3
F. W. PRESTON, PhD., A.M.I.C.E.
The Analysis of Opal and Alabaster Glasses.	7
J. D. CAUWOOD, MSc., A.I.C., J. H. DAVIDSON, MSc., F.I.C., and VIOLET DIMBLEBY, MSc.
The Analysis of Opal Glasses.	18
W. SINGLETON, BSc., and R. C. CHIRNSIDE
The Ultra-violet Light Transmission of Some Colourless Bottle Glasses	27
DAVID STARKIE, MSc., and Prof. W. E. S. TURNER
The Influence of Iron Oxide on the Properties of Glass.	31
S. ENGLISH, D.Sc., F.I.C., H. W. HOWES, MSc.Tech., Prof. W. E. S. TURNER, and FRANCIS WINKS, MSc.Tech.
The Relationship between Chemical Composition and the Resistance of Glasses to the Action of Chemical Reagents. Part II. Glasses containing Iron Oxides.	52
VIOLET DIMBLEBY, MSc., and Prof. W. E. S. TURNER
A Study of the Casing of Colourless by Cobalt Blue Glass. Part I. The Thermal Expansions.	57
Prof. W. E. S. TURNER and FRANCIS WINKS, MSc.Tech.
A Study of the Casing of Colourless by Cobalt Blue Glass. Part II. The Question of Setting Rate.	75
S. ENGLISH, DSc., F.I.C., and Prof. W. E. S. TURNER
The Calculation of Glass Constants on the Basis of Recent Investigations.	82
Prof. E. ZSCHIMMER
Renaissance Glass.	119
WALTER BUTTERWORTH, Sen., M.A.
The Design and Operation of Glass Furnaces.	128
W. W. WARREN, A.M.I.C.E., A.M.I.E.E.
Some Notes on Accelerating the Melting of Glass.	131
R. HEMINGWAY
Some Experiments on the Acceleration of Glass Melting by the Use of Volatile Constituents in the Batch Mixture.	134
Prof. W. E. S. TURNER
Apparatus for Recording the Glass Level in a Tank Furnace.	138
J. W. BALL and C. G. EDEN.
Some Remarks on Glasshouse Pot	141
PERCIVAL MARSON
The Control and Distribution of Temperature in Lehrs.	146
A. COUSEN, MSc., H. W. HOWES, MSc.Tech., and F. WINKS, MSc.Tech.
A Study of the Casing of Clear by Opal Glass. The Importance of Annealing.	161
FRANCIS WINKS MSc. Tech., and Prof. W. E. S. TURNER
The Value of the Thermal Expansion Factor of Aluminium Oxide in Glass.	164
I. KITAIGORODSKY and S. RODIN.
A Study of the Glasses Boric Oxide-Silica.	169
ARNOLD COUSEN, MSc., and Prof. W. E. S. TURNER
Expansion and Tensile Tests . on Glass House Refractories.	190
J. F. HYSLOP, BSc., R. F. PROCTOR, and H. C. BIGGS
The Annealing of Glass from the Point of View of Factory Operation.	204
E. A. COAD PRYOR, B.A.
The Characteristics of Refractory Clays for the Glass Industry.	213
G. GEHLOFF, H. KALSING, K. LITZOW, and M. THOMAS
The Characteristics of Refractory Clays for the Glass Industry.	280
G. GEHLHOFF, H. KALSING, K. LITZOW, and M. THOMAS
The Progress of Glass Technology under the Glass Research Delegacy	281
Some Properties of Glasses Containing Zinc Oxide.	287
S. ENGLISH, D.Sc., Prof. W. E. S. TURNER, and F. WINKS, MSc.Tech.
The Glass-Melting Furnace as a Heat Machine.	297
Prof. Dr. D. AUFHAUSER.
Ultra-violet Light Transmitting Glasses.	306
D. STARKIE, MSc., and Prof. W. E. S. TURNER
The Influence of Ferric Oxide Content on the Light Transmission of Soda-Lime-Silica Glass, with Special Reference to the Ultra-Violet.	324
D. STARKIE, MSc., and Prof. W. E. S. TURNER
The Calculation of Glass Constants on the Basis of Recent Investigations.	333
Prof. E. ZSCHIMMER

Volume XIII 1929

Journal of the Society of Glass Technology Volume XIII 1929

Proceedings pages are numbered separately from Transactions pages.

TRANSACTIONS
Visit to the Works of the Ford Motor Co., Ltd., Manchester
Reports to the Special Committee on Glasshouse Pots
The Durability of Glasshouse Pots
J. F. HYSLOP, B.Sc.
Summary of Faults and Defects which may arise in the Manufacture and Use of Glasshouse Pots : Their Cause and Prevention
PERCIVAL MARSON
Miscellaneous Subjects
Prof. W. E. S. TURNER
Recent Progress in the Study of Refractory Materials for the Glass Industry
Prof. W. E. S. TURNER; and General Discussion
The Annual Dinner
Visit to the Glass Works of Messrs. Beatson, Clark & Co., Ltd., Rotherham
Visit to the Laboratories of the British Association of Research for the Cocoa, Chocolate, Sugar, Confectionery, and Jam Trades, London
Visit to the Steel Works of Messrs. Hadfields, Ltd.
Visit to the Warmsworth Quarries
Co-operation and Foreign Competition. (Presidential Address)
HERBERT WEBB
PAPERS
A Further Note on the Fracture Systems of Glass.	3
Dr. F. W. PRESTON
A Simple Test for the Detection Of Iron Oxides in Glass Sands	15
J. T. RANDALL and R. E. LEEDS
Note on the Reduction of Glasses in Hydrogen	16
J. T. RANDALL and R. E. LEEDS
An Observation on M. Le Chatelier's Equation for the Viscosity of Glass	19
Dr. F. W. PRESTON
The Influence of Cullet on the Rate of Melting and other Properties of Soda-Lime-Silica Glass	25
W. HODKIN, B.Sc., H. W. HOWES, M.Sc.Tech., and Prof. W. E. S. TURNER
The Effect of Cullet on the Melting and Working Properties of Potash-Lead Oxide-Silica Glasses	37
S. ENGLISH, D.Sc., Mrs. G. A. GREEN, B.Sc., F. W. HODKIN, B.Sc., and Prof. W. E. S. TURNER
The Influence of the Addition of Small Quantities of Alkaline Salts on the Ease of Melting and on the Working Properties of Soda-Lime-Silica Glasses prepared from Cullet	47
F. W. HODKIN, B.Sc., Prof. W. E. S. TURNER, and F. WINKS, M.Sc.Tech.
The Influence of the Grain Size of the Batch Materials on the Rate of Melting	57
Mrs. G. A. GREEN, B.Sc., F. W. HODKIN, B.Sc., M. PARKIN, M.Sc., and Prof. W. E. S. TURNER
Experiments on the Re-Melting of Glasses of Abnormal Working Properties	64
Mrs. G. A. GREEN, F. W. HODKIN, B.Sc., and Prof. W. E. S. TURNER
Note on the Viscosity of Some Glasses of Abnormal Working Properties	70
S. ENGLISH, D.Sc., and Prof. W. E. S. TURNER
The Velocity of Crystallisation in Soda-Lime-Silica Glasses	76
Prof. E. ZSCHIMMER
A Brief Outline of the History, Development and Methods Employed in the Manufacture of Laminated Glass.	85
WESTCOTE R. LYTTLETON
Gases in Glass. Part II. The Gas and Moisture Content of Glasses	98
A. BECKER and H. SALMANG (translated by H. W. HOWES, M.Sc.Tech.)
The Theory and Design of Plate Glass Polishing Machines. Part II	111
F. W. PRESTON, Ph.D., A.M.I.C.E.
West Country Glasshouses	124
FRANCIS BUCKLEY
Crystal Growth in Opal Glass-A Correction	129
J. F. HYSLOP, B.Sc.
Note on a Method of Testing the Probable Durability of Tank Blocks	130
E. J. C. BOWMAKER, B.Sc.
The Distribution of Temperature and Block Corrosion in Glass Tank Furnaces	140
F. F. S. BRYSON, M.B.E., M.A., B.Sc., F.Inst.P.
Heat Resisting Steels with Special Reference to their application in the Glass Industry	167
R. J. SARJANT, M .Sc., A.R.C.Sc., D.I.C.
Glass : Cut and Engraved	183
WALTER BUTTERWORTH, Sen., M.A.
The Measurement of the Viscosity of Glass at High Temperatures by the Rotating Cylinder Viscometer.	194
R. F. PROCTOR, B.Sc., A.M.I.E.E., and R. W. DOUGLAS
The Photo-elastic Properties of Glass	213
F. C. HARRIS, M.Sc.
A Study of the Devitrification of Glass	219
Prof. J. J. KITAIGORODSKY
Old Lancashire Glasshouses.	229
FRANCIS BUCKLEY
Note on the Homogeneity of Small-scale Glass Meltings in Platinum	243
VIOLET DIMBLEBY, M.Sc., W. HOWES, M.Sc.Tech., and Prof. W. E. S. TURNER
The Effect of Boric Oxide on the Rate of Melting and on some Physical Properties of Colourless Bottle Glasses.	248
VIOLET DIMBLEBY, M.Sc., M. PARKIN, M.Sc., Prof. W. E. S. TURNER and F. WINKS, M.Sc.Tech.
The Effect of Boric Oxide on the Rate of Melting and on some Physical Properties of Colourless Bottle Glasses	259
VIOLET DIMBLEBY, M.Sc., M. PARKIN, M.Sc., Prof. W. E. S. TURNER, and F. WINKS, M.Sc.Tech. (Discussion)
Progress in Glass Technology at Sheffield during 1928-29, under the Auspices of the Glass Research Delegacy	262
Additional Note on the Analysis of Glasses containing Phosphate
. D. CAUWOOD, M.Sc. J. H. DAVIDSON, M.Sc., and VIOLET DIMBLEBY, M.Sc.	270
The Coloration of Glass by X-Rays
Prof. C. W. PARMELEE, Prof. G. L. CLARK and A. E. BADGER	279

The Diffraction of X-Rays by Ordinary Glass subjected to Various Treatments	285
Prof. C. W. PARMELEE, Prof. G. L. CLARK, and A. E. BADGER
285 XXXI.-An X-Ray Investigation of Felspar Glasses	290
Prof. G. L. CLARK and C. R. AMBERG
The Effect of the Continued Remelting of Cullet in Sillimanite and Fireclay Vessels	296
A. A. CHILDS, VIOLET DIMBLEBY, M.Sc., H. W. HOWES, M.Sc.Tech., and Prof. W. E. S. TURNER
The Effect on the Properties of Soda-Lime-Silica Glass of the Continued Remelting in Platinum	304
VIOLET DIMBLEBY, M, H. W. HOWES, M.Sc.Tech., Prof. W. E. S. TURNER, and F. WINKS, M.Sc. Tech.
The Devitrification of Glass : (1) Relative Stabilities of Different Glasses; (2) Time-Temperature Curves of Visible Devitrification ; (3) Proposed Classifi-cation of Glasses	322
Prof. C. W. PARMELEE and A. J. MONACK
A Theory of the Strength of Thermally Toughened Glass	336
Dr. J. T. LITTLETON, jun., and Dr. F. W. PRESTON
The Velocity of Crystallisation in Soda-Lime-Silica Glasses. Discussion	350
The Strength of Glass Containing Cracks	351
LOWELL H. MILLIGAN, Ph.D.
The Glass Industry of North America in 1929.	360
Prof. W. E. S. Turner

Volume XIV 1930

Journal of the Society of Glass Technology Volume 14 1930

Annual contents

TRANSACTIONS
Visit to the Science Museum, London
Visit to the Silica Brickworks of Messrs. Yorkshire Amalgamated Products, Ltd.
Visit to the Glassworks of Messrs. Stevens and Williams, Ltd.
Visit to the Brierley Hill Institute
The Joint Meetings with the Deutsche Glastechnische GesellschaftSociety's Luncheon at Stourbridge, March 19th, 1930
Joint Meetings of Technical Committees of Society of Glass Technology and Deutsche Glastechnische Gesellschaft in London
Notes on the Effect of Load on the Fuel Consump-tion of a Glass Tank Furnace
E. A. COAD-PRYOR, B.A.
The Efficiency of Tank Furnaces for Glass Melting. Proposals for the Standardisation of its Nomenclature and Methods for its Measurement
Dr. W. FRIEDMANN
The Effect of Factory Organisation and Size of Pots on the Production from Pot Furnaces
W. W. WARREN, A.M.I.C.E., A.M.I.E.E.
The Manufacture and Working Life of Glasshouse Pots
Dr. O. BARTSCH
The Manufacture of Glasshouse Pots in England
G. V. EvERS
Specifications for Tank Blocks
W. J. REES, B.Sc.Tech., F.I.C.
Visit to the Works of Messrs. Redfearn Bros., Ltd., Barnsley
Joint Meeting with the Ceramic Society, Stoke-on-Trent, November 12th-13th, 1930.
Round of Visits to Works and Laboratories in Connection with the Joint Meeting with the Ceramic Society at Stoke-on-Trent, November 1930.
Works of Taylor, Tunnicliff & Co., Ltd., Stone
Laboratories of North Staffordshire Technical College, Stoke
Works of Josiah Wedgwood & Sons, Ltd., Stoke
Works of Doulton & Co., Ltd., Burslem
Works of Derbyshire Silica Fire Brick Co., Ltd., Friden
Report on Technical Co-operation between the Deutsche GlaInternational Glass Standards A Provisional Standard Test for the Thermal Endurance of Glassstechnische Gesellschaft and the Society of Glass Technology
The Use of Borax in Glass Manufacture
(General Discussion introduced by EDWARD MEIGH, M.B.E., M.Sc.)
Glass Technology and Industrial Progress
(Discussion, introduced by PROFESSOR W. E. S. TURNER)
Elimination of Waste in the Glass Industry
GEORGE H. MILES, D.Sc
Second British Glass Convention
The Selling of Glass (Presidential Address to the Second Glass Convention)
WALTER CHANCE, M.A.
PAPERS
The Choice of Annealing Schedule for Commercial Glassware	3
J. B. MURGATROYD, B.A.
The Selection of Coal for Gas Producers	16
E. J. C. BOWMAKER, B.Sc., A.R.C.S., and J. D. CAUWOOD, M.Sc., A.I.C.
Notes on Various old Glasshouses	30
FRANCIS BUCKLEY, F.S.A.
The Strength of Glass Containing Cracks."	37
Dr. L. H. MILLIGAN (Discussion by Dr. F. W. Preston)
A Study of the Chemical Reactions in the Melting of Potassium Borosilicate Glass	39
M. A. BESBORODOV and L. M. SILBERFARB
Note on the Determination of Boric Oxide in Glass	51
VIOLET DIMBLEBY, M.Sc.
Glass-House Refractories. A Study of Corrosion Resisting Properties	63
J. H. PARTRIDGE, Ph.D., B.Sc., and H. C. BIGGS
The Thermal Expansion of Glass. Part I: The General Form of the Expansion Curve	84
Prof. W. E. S. TURNER and F. WINKS, M.Sc.Tech.
The Thermal Expansion of Glass. Part II. Glasses of the Series Sodium Metasilicate-Silica	110
Prof. W. E. S. TURNER and F. WINKS, M.Se.Tech.
Chemical and Physico-chemical Reactions in the Grinding and Polishing of Glass	127
Dr. F. W. PRESTON
An Investigation of the Nature of Rouge Cake	133
W. M. HAMPTON, Ph.D., B.Sc., F.Inst.P., A.I.C.
Old London Glasshouses. I. Southwark	137
FRANCIS BUCKLEY, F.S.A.
The Ternary System K₂O-CaO-SiO₂	149
G. W. MOREY, F. C. KRACEK, and N. L. BOWEN
The Thermal Endurance of Glass	188
C. E. GOULD and W. M. HAMPTON, Ph.D., B.Sc., F.Inst.P., A.I.C.
Some Observations on the Manufacture of Refractory Products in the U.S.A.	205
G. V. EVERS
The Structure of Glasses: The Evidence of X-Ray Diffraction	219
J. T. RANDALL, H. P. ROOKSBY, and B. S. COOPER
On the Theory of the Composition of Glass	229
Professor E. ZSCHIMMER
Some Experiments on the Cascade Method of Melting Glass	249
T. C. MOORSHEAD and E. A. LOAD-PRYOR, B.A.
The Mechanical Handling of Raw and Manufactured Material under the Conditions obtaining in Glass Works.	263
T. E. DIMBLEBY, A.M.I.Mech.E.
On the Dependence of the Properties of Glass on its Thermal History	280
Dr. E. BERGER
The Structure of Silicates	295
Professor W. L. BRAGG, F.R.S.
Progress in Glass Technology under the Auspices of the Glass Delegacy	307
The Thermal Endurance of Glass. An Examination of the Proposals of Gould and Hampton
W. J. A. WARREN, B.Sc.	313
A Suggested Method for Determining the Plasticity of Clays, and Some Applications of it	330
E. J. C. BOWMAKER, B.Sc.
On the Supposed Diphasic Nature of Glass	349
Dr. F. W. PRESTON
The Effect on the Properties of a Soda-Lime-Silica Glass of Repeated Melting in Platinum. The X-Ray Pattern	351
Professor W. E. S. TURNER
The Development and Trend of the Mechanical Production of White Hollow Glass Ware	353
Dr. A. WENDLER .
The Scientific Basis of Glass Melting	368
Professor W. E. S. TURNER
The Decomposition of Sodium Carbonate by Heat.	394
J. T. HOWARTH, M.Sc. Ph.D., and Professor W. E. S. TURNER
The Reaction between Sodium Carbonate and Silica as Measured by the Decomposition Pressure	402
J. T. HOWARTH, M.Sc. Ph.D., and Professor W. E. S. TURNER
The Decomposition Pressure and the Rate of Decomposition of Calcium Carbonate	409
G. H. Whiting, B.A., Ph.D., and Professor W. E. S. TURNER

Volume XV 1931

Journal of the Society of Glass Technology Volume XV 1931

Proceedings pages are numbered separately from Transactions pages.

PAPERS
Scientific Research from the Business Point of View	5
CHRISTOPHER WILSON
Currents and Temperatures in Glass Tanks I	12
(the late) Professor G. GEHLHOFF, with W. SCHNEEKLOTH and Dr. M. THOMAS
Standards for Testing the probable Behaviour of Tank Blocks	30
Dr. W. MIEHR
Note on Refractive Index, Atomic Size, and Packing in Glasses	41
J. T. RANDALL, M.Sc., and N. GEE
The Structure of Glasses: The Evidence of X-Ray Diffraction	54
J. T. RANDALL, M.Sc., H. P. ROOKSBY, and B. S. COOPER
The Ternary System K 2 O-CaO-SiO 2 : A Correction.	57
G. W. MOREY, F. C. KRACEK, and N. L. BOWEN
Studies of Clay Mixtures for Glass Melting Pots. Part I Resistance to Thermal Shock. Part II. Shrinkage at High Temperatures	59
Dr. J. H. PARTRIDGE and G. F. ADAMS
Some Notes on the Manufacture and Performance of Slip-cast Tank Blocks	83
PERCY HALLER, M.Sc.
Glass Making in Lorraine	107
E. GRAHAM CLARK, M.C., B.Sc.
Flow Tests in Small Glass Tanks	119
A. L. MARDE
An Investigation of the Flow of Glass in Tank Furnaces by the Use of Barium Oxide	128
E. J. C. BOWMAKER, B.Sc., A.R.C.S., and J. D. CAUWOOD, M.Sc., A.I.C.
The Constitution of Glass Based on the Laws of Solutions	140
OSCAR KNAPP, Ph.D.
The Use of Ammonium Sulphate as an Accelerating Agent in Glass Melting	153
M. PARKIN, M.Sc., W. J. A. WARREN, B.Sc., and Professor W. E. S. TURNER
The Use of Ammonium Sulphate in Glass-Making.	166
A. E. J. VICKERS, M.SC., F.I.C., F.G.S., G. H. WHITING, B.A., Ph.D., R. MILLER, and V. E. BATES, B.Sc., A.I.C.
The Influence of Manganese Oxide on some Properties of Glass	172
A. A. CHILDS, VIOLET DIMBLEBY, M.SC., F. WINKS, M.Sc.Tech., and Professor W. E. S. TURNER
The Density of the Sodium Metasilicate-Silica Glasses.	185
F. WINKS, M.Sc.Tech., and Professor W. E. S. TURNER
Studies of Clay Mixtures for Glass Melting Pots. III. The Flow at High Temperatures of Pot Clay Refractories under Stress	190
J. H. PARTRIDGE, B.Sc., Ph.D., and G. F. ADAMS
Note on Heat-Absorbing Glass	208
A. F. DUFTON, M.A., D.I.C.
Faraday's Research on Optical Glass	212
ARTHUR MARSHALL
Chapters in the History of the Midland Glass Industry. I. The Early History of Glass-Making in the Stourbridge District	219
D. N. SANDILANDS, M.Com.
The Birth of Birmingham's Glass Industry	227
D. N. SANDILANDS, M.Com.
The Last Fifty Years of the Excise Duty on Glass.	231
D. N. SANDILANDS, M.Com.
The Spon Lane Works	245
D. N. SANDILANDS, M.Com.
The Use of Barium Oxide to Study the Flow of Glass in Tank Furnaces	251
Dr. W. M. HAMPTON
A Further Study of the Hydrofluoric Acid Solubility Test as a Guide to Assessing the Durability of Tank Blocks E. J. C. BOWMAKER, B.Sc., and J. H. PARTRIDGE, B.Sc., Ph.D.	255
A Review of Recent Progress in the Study of the Thermal Treatment of Glass	262
Dr. J. T. LITTLETON
Recent Developments in Optical Glass Manufacture	306
W. M. HAMPTON, Ph.D., B.Sc., F.Inst.P., and W. N. WHEAT, B.Sc.
The Future of Glass Melting	321
EDWARD MEIGH, M.B.E., M.Sc.
Progress in Glass Technology during 1930-31 under the Auspices of the Glass Research Delegacy	347
On the Specific Volume of Some Two Component Glasses	354
S. C. WATERTON, B.Sc.
The Dissociation of Lithium Carbonate and Potassium Carbonate	360
J. T. HOWARTH, M.SC., Ph.D., and Professor W. E. S. TURNER
The Influence of Ferrous Oxide Content on the Light Transmission of a Soda-Lime-Silica Glass	365
D. STARKIE, M.Sc., Ph.D., and Professor W. E. S. TURNER

Volume XVI 1932

Journal of the Society of Glass Technology Volume XVI 1932

Proceedings pages are numbered separately from Transactions pages.

PAPERS
The Testing of Commercial Glassware	5
By J. B. MURGATROYD, B.A.
A Note on the Influence of the Method of Support in Bursting Pressure Tests on Bottles	18
E. J. GOODING, B.Sc.
Bulk Samples for the Testing of Glass Containers	22
E. J. C. BOWMAKER, B.Sc., A.R.C.S., and J. D. CAUWOOD, M.Sc., A.I.C.
" The Testing of Glassware, with Special Reference to Glass Containers." (Discussion on the Papers of Messrs. MURGATROYD, GOODING, and BOWMAKER and CAUWOOD.)	34
Notes on a Method of Determining the Viscosity of Molten Glass	43
A. R. WOOD, M.A.
Regeneration in Glass-Melting Furnaces	52
T. P. COLCLOUGH, M.Sc., B.Met.
Safety Glass: Its History, Manufacture, Testing, and Development	67
J. WILSON, M.C., M.Sc., A.I.C.
Some Further Experiments on the Rate of Decomposition of Calcium Carbonate	80
W. MASKILL, B.Sc., A.R.C.S., and Professor W. E. S. TURNER
The Reaction between Calcium Carbonate and Silica.	94
W. MASKILL, B.Sc., A.R.C.S., G. H. WHITING, B.A., Ph.D., and Professor W. E. S. TURNER
Structure of Sillimanite and Related Materials	111
W. H. TAYLOR, M.SC., Ph.D.
The Effect of Gases on a Commercial Glass Containing Lead Oxide	121
J. H. PARTRIDGE, B.Sc., Ph.D
Studies in Clay Mixtures for Glass Melting Pots. Part IV. The Corrosion Resisting Properties	131
J. H. PARTRIDGE, B.Sc., Ph.D., G. F. ADAMS, B.Sc., and J. R. LAIT
Investigations on the Tensile Strength of Glass	145
E. J. GOODING, B.Sc., Ph.D.
The Colour of Selenium Ruby Glasses	171
H. P. ROOKSBY, B.Sc., A.Inst.P.
The Strength of Materials as Affected by Discontinuities and Surface Conditions	182
Professor F. C. LEA, O.B.E., D.Sc., M.I.C.E., M.I.Mech.E.
The Influence of Thermal Treatment on the Opacity of Fluoride Opal Glasses	210
Professor I. KITAIGORODSKY and S. I. KUROVSKAJA
A Study of the Volatilisation and Vapour, Tension at High Temperature of an Alkali-Lead Oxide-Silica Glass.	219
E. PRESTON, B.Sc., and Professor W. E. S. TURNER
A Note on some Special Farms of Corrosion of Fire-clay Pots used for Melting Potash-Lead Oxide-Silica Glass	240
E. PRESTON, B.Sc., and Professor W. E. S. TURNER
The Viscosity-Temperature Relationship and Some Inferences on the Nature of Molten and of Plastic Glass.	244
S. C. WATERTON, B.Sc., D.I.C
Wealden Glass: The Old Surrey-Sussex Industry.	254
S. E. WINBOLT, M.A.
Some Research Problems in Applied Chemistry	272
Professor GILBERT T. MORGAN, O.B.E., D.Sc., F.R.S.
A New Method of Melting Glass and Silicates	284
Dr. G. A. ZOTOS
Recent Developments in Open-Hearth Furnace Design	293
R. A. HACKING, M.Sc
Measuring the Temperature of Flowing Gases in Furnace Systems. A Comparison between Ordinary Thermocouple and Suction Pyrometers	315
M. PARKIN, M.Sc., and F. WINKS, M.Sc. Tech.
The Fluxing of Silica. A Note on the Silica Equilibrium Diagrams	327
J. F. HYSLOP, B.Sc.
The Volatilisation and Vapour Tension at High Temperatures of the Sodium Silicate-Silica Glasses	331
E. PRESTON , B.Sc., and Professor W. E. S. TURNER
The Effect of Age on the Strength of Commercial Glassware	350
J. B. MURGATROYD, B.A.
Statistical Methods for the Routine Testing of Bottles	360
F. C. FLINT, B.S., and A. K. LYLE
Progress in Glass Technology during 1931-32 under the Auspices of the Glass Research Delegacy	375
Some Temperature Measurements on Wired Glass	382
H. E. BECKETT, B.Sc.
Opal Glass: A Resume of the Work of the B.S.I. Sub-Committee ELG/3/2 on Light-Diffusing Glass	387
S. ENGLISH, D.Sc.
Some Aspects of the Manufacture of Opal Glass	399
W. M. HAMPTON, Ph.D., B.Sc., F.Inst.P.
The Theory and Specification of Opal Diffusing Glasses. Part I	408
J. W. RYDE and B. S. COOPER
The Theory and Specification of Opal Diffusing Glasses. Part II	430
J. W. RYDE, B. S. COOPER, and W. A. R. STOYLE
The Electrical Conductivity of Sodium Meta-silicate-Silica Glasses	450
E. SEDDON, B.Sc., Ph.D., E. J. TIPPETT, B.Sc., Ph.D., and Prof. W. E. S. TURNER

Volume XVII 1933

Journal of the Society of Glass Technology Volume XVII 1933

Proceedings pages are numbered separately from Transactions pages.

PAPERS
The Surface Strength of Glass and Other Materials	5
F. W. PRESTON, Ph.D.
The Behaviour of Sodium Carbonate during Isothermal Heating	9
M. A. BESBORODOV
Note.on the Formation of Sodium Sulphate in Glass Furnaces and of Some Defects Arising There from	22
PROFESSOR W. E. S. TURNER
The Rate of Reaction between Silica and Sodium Carbonate at Different Temperatures and the Process of Vitrification	25
J. T. HOWARTH, M.Sc., Ph.D., W. MASKILL, B.Sc., and PROFESSOR W. E. S. TURNER
Glass Forming Moulds: Material and Design	50
THOMAS WARDLEY
Some General Considerations of Glass-Making Moulds	68
H. W. HowEs, M.Sc. Tech.
A Note on the Permeability of Refractory Materials to Gases	93
A. E. J. VICKERS, M.Sc., F.I.C.
Effective Heat Exchange in the Lower Zones of Regenerators	102
W. B. MITCHELL and H. D. BENNIE
A Note on Vapour Tension Measurements of BaO, SrO, and CaO and their Mixtures from Measurements of the Rates of Evaporation."	118
E. PRESTON, B.Sc., Ph.D.
A Study of the Volatilisation from Potassium Oxide-Silica Glasses	122
E. PRESTON, B.Sc., Ph.D., and Professor W. E. S. TURNER
Notes on the Early Development of the Fourcault Process. The Development in Belgium	145
Dr. J. MAX MUHLIG
Some Notes on Toughened Plate Glass	149
JAMES MEIKLE
A Review of the Problem of Tank Blocks for Glass Melting Furnaces	169
J. H. PARTRIDGE, B.Sc., Ph.D.
The Application of Statistical Methods to the Quality Control of Manufactured Products.	239
B. P. DUDDING and I. M. BAKER
The Strength of Glass.	260
J. B. MURGATROYD, B.A.
A Study of the Stresses in Flashed Glasses.	273
W. M. HAMPTON, Ph.D., B.Sc., F.Inst.P.
X-Ray Diffraction and the Structure of Glasses	287
J. T. RANDALL, M.Sc., and H. P. ROOKSBY, B.Sc., A.Inst.P.
Safety Glass	296
J. WILSON, M.C., M.Sc., A.I.C.
Physical and Chemical Processes in the Melting of Potassium Oxide-Lead Oxide-Silica Glass	305
M. A. BESBORODOV, A. A. APPEN, T. F. KORZUKHINA, E. P. CHODIKEL, and G. A. SHINKE
An Improved Method for Measuring the " After-Contraction " of Refractory Materials	320
A. ERIC J. VICKERS and J. A. SUGDEN
The Behaviour of Glass when Slowly Heated, with Special Reference to the Thermal Expansion.	324
ERIC SEDDON, B.Sc., Ph.D., and PROFESSOR W. E. S. TURNER
Presidential Address	349
G. V. EVERS
Progress in Glass Technology during 1932-33 under the Auspices of the Glass Research Delegacy	359
Some Notes on Heat-Resisting Metals	366
N. P. INGLIS, Ph.D., M.Eng.
The " Reversible " Thermal Expansion of a Silica Brick	378
J. A. SUGDEN, M.Sc., Ph.D.
A Study of Crushing Brittle Solids	384
W. F. CAREY and C. H. BOSANQUET
Particle Size and Concentration in Opal Diffusing Glasses	411
C. DUNBAR, M.SC.
Some Notes on Tank Furnace Wear	433
E. J. C. BOWMAKER, B.Sc., A.R.C.S., and J. D. CAUWOOD, M.SC., A.I.C.

Volume XVIII 1934

Journal of the Society of Glass Technology Volume 18 1934

Annual contents

PAPERS
The Thermal Expansion of Some Soda-Lime-Silica Glasses.	5
E. SEDDON, B.Sc., Ph.D., PROFESSOR W. E. S. TURNER, and F. WINKS, M.Sc.Tech.
The Influence of Boric Oxide on the Rate of Melting and on the Thermal Expansion and Resistance to Weathering of Soda-Lime-Silica Sheet Glasses.	13
VIOLET DIMBLEBY, M.Sc., MICHAEL PARKIN, M.Sc., ERIC SEDDON, B.Sc., Ph.D., PROFESSOR W. E. S. TURNER, and FRANCIS WINKS, M.Sc.Tech. .
The Application of Statistical Methods to the Planning of Routine Testing Procedure.	19
B. P. DUDDING, M.B.E., A.R.C.Sc., F.Inst.P., and MISS I. M. BAKER
A Study of the Series of Glasses Containing Sodium Oxide, Boric Oxide and Silica.	32
E. J. GOODING, B.Sc., Ph.D., and PROFESSOR W. E. S. TURNER
ANote on Unintentional Flashed Glasses.	67
FRANK W. PRESTON, Ph.D
Note on the Preparation of Pure Anhydrous Sodium Carbonate	69
W. H. WITHEY, B.A.
A Note on the Distribution of Temperature during Pot Arching	71
W. MASKILL, B.Sc.
The Determination of the Transformation Point of the Same Optical Glasses in Three Different Laboratories.	79
DR. E. BERGER, DR. M. THOMAS, and PROFESSOR W. E. S. TURNER
Symposium on the Form, Design and Decoration of Glass. Introductory Address.	89
SIR, H. LLEWELLYN SMITH, G.C.B.
Artistic Table Glass.	96
JAMES H. HOGAN
Modern Architectural Uses of Glass	106
GEORGE LOVELL
A Dissertation on Glass Container Design.	112
KENNETH L. GRAHAM
Notes on the Design of Glass Bottles.	122
EDWARD MEIGH, M.B.E., M.Sc.
The Testing of, and a Specification for, Glass House Pot Clays.	128
J. H. PARTRIDGE, B.Sc., Ph.D.
The Volatilisation of Lithium Oxide at High Temperatures from Lithium Oxide-Silica Glasses	143
ERIC PRESTON, B.Sc., Ph.D., and PROFESSOR W. E. S. TURNER
The Glass Industry of Norway and Sweden.	169
PROFESSOR W. E. S. TURNER
The Decomposition Of Sodium Carbonate.	182
E. PRESTON, B.Sc., Ph.D., and PROFESSOR W. E. S. TURNER
Some Implications of the Known Variation in the Strength of Glass.	194
W. M. HAMPTON, B.Sc., Ph.D., F.Inst.P., and C. E. GOULD
Investigation of the Viscosity of the Binary System Na₂B₄O₇-NaH₂PO₄ in the Fused State	201
M. P. VOLAROVICH
The Viscosity of the Binary Systems Na₂B₄O₇-B₂O₃ and NaBO₂ NaPO₃ in the Fused State.	209
M. P. VOLAROVICH and D. M. TOLSTOY.
Note on the Volatility of Silica.	222
E. PRESTON, B.Sc., Ph.D., and PROFESSOR W. E. S. TURNER
A Study of the Breaking Strength of Glass.	225
A. J. HOLLAND, M.Sc., A.R.C.S., D.I.C., and PROFESSOR W. E. S. TURNER
The Influence of Temperature on the Bursting Pressure of Bottles.	252
BRIAN LONGMUIR, B.Eng., and PROFESSOR W. E. S. TURNER
Progress in Glass Technology Under the Glass Research Delegacy.	260
PROFESSOR W. E. S. TURNER.
Some Properties of Mixed Alkali-Lime-Silica, Glasses containing Lithia, Soda, Potash and Rubidia.	268
S. C. WATERTON, B.Sc., PhD., and PROFESSOR W. E. S. TURNER
Note on the Rate of Melting and Refining of Alkali Lime-Silica Glasses containing both Soda and Potash	286
W. MASKILL, B.Sc., and PROFESSOR W. E. S. TURNER
A Study of the Fundamental Reactions in the Formation of Soda-Lime-Silica Glasses	290
J. T. HOWARTH, M.Sc., Ph.D., R. F. R. SYKES, B.Sc., B.Sc.Tech., and PROFESSOR W. E. S. TURNER .
A Window Glazed with Mediaeval Glass Fragments	307
S. E. WINBOLT, M.A.
The Glass Collections of the Victoria and Albert Museum, London	308
B. RACKHAM, F.S.A.
The Rate of Setting of Glass during Working	323
PROFESSOR I. I. KITAIGORODSKY and ENG. N. W. SOLOMIN
A Critical Survey and Report on the Permeability of Refractory Materials to Gases	336
E. PRESTON, Ph.D., B.Sc.

Volume XIV 1935

Journal of the Society of Glass Technology Volume 14 1930

Annual contents

TRANSACTIONS
Visit to the Science Museum, London
Visit to the Silica Brickworks of Messrs. Yorkshire Amalgamated Products, Ltd.
Visit to the Glassworks of Messrs. Stevens and Williams, Ltd.
Visit to the Brierley Hill Institute
The Joint Meetings with the Deutsche Glastechnische GesellschaftSociety's Luncheon at Stourbridge, March 19th, 1930
Joint Meetings of Technical Committees of Society of Glass Technology and Deutsche Glastechnische Gesellschaft in London
Notes on the Effect of Load on the Fuel Consump-tion of a Glass Tank Furnace
E. A. COAD-PRYOR, B.A.
The Efficiency of Tank Furnaces for Glass Melting. Proposals for the Standardisation of its Nomenclature and Methods for its Measurement
Dr. W. FRIEDMANN
The Effect of Factory Organisation and Size of Pots on the Production from Pot Furnaces
W. W. WARREN, A.M.I.C.E., A.M.I.E.E.
The Manufacture and Working Life of Glasshouse Pots
Dr. O. BARTSCH
The Manufacture of Glasshouse Pots in England
G. V. EvERS
Specifications for Tank Blocks
W. J. REES, B.Sc.Tech., F.I.C.
Visit to the Works of Messrs. Redfearn Bros., Ltd., Barnsley
Joint Meeting with the Ceramic Society, Stoke-on-Trent, November 12th-13th, 1930.
Round of Visits to Works and Laboratories in Connection with the Joint Meeting with the Ceramic Society at Stoke-on-Trent, November 1930.
Works of Taylor, Tunnicliff & Co., Ltd., Stone
Laboratories of North Staffordshire Technical College, Stoke
Works of Josiah Wedgwood & Sons, Ltd., Stoke
Works of Doulton & Co., Ltd., Burslem
Works of Derbyshire Silica Fire Brick Co., Ltd., Friden
Report on Technical Co-operation between the Deutsche GlaInternational Glass Standards A Provisional Standard Test for the Thermal Endurance of Glassstechnische Gesellschaft and the Society of Glass Technology
The Use of Borax in Glass Manufacture
(General Discussion introduced by EDWARD MEIGH, M.B.E., M.Sc.)
Glass Technology and Industrial Progress
(Discussion, introduced by PROFESSOR W. E. S. TURNER)
Elimination of Waste in the Glass Industry
GEORGE H. MILES, D.Sc
Second British Glass Convention
The Selling of Glass (Presidential Address to the Second Glass Convention)
WALTER CHANCE, M.A.
PAPERS
The Choice of Annealing Schedule for Commercial Glassware	3
J. B. MURGATROYD, B.A.
The Selection of Coal for Gas Producers	16
E. J. C. BOWMAKER, B.Sc., A.R.C.S., and J. D. CAUWOOD, M.Sc., A.I.C.
Notes on Various old Glasshouses	30
FRANCIS BUCKLEY, F.S.A.
The Strength of Glass Containing Cracks."	37
Dr. L. H. MILLIGAN (Discussion by Dr. F. W. Preston)
A Study of the Chemical Reactions in the Melting of Potassium Borosilicate Glass	39
M. A. BESBORODOV and L. M. SILBERFARB
Note on the Determination of Boric Oxide in Glass	51
VIOLET DIMBLEBY, M.Sc.
Glass-House Refractories. A Study of Corrosion Resisting Properties	63
J. H. PARTRIDGE, Ph.D., B.Sc., and H. C. BIGGS
The Thermal Expansion of Glass. Part I: The General Form of the Expansion Curve	84
Prof. W. E. S. TURNER and F. WINKS, M.Sc.Tech.
The Thermal Expansion of Glass. Part II. Glasses of the Series Sodium Metasilicate-Silica	110
Prof. W. E. S. TURNER and F. WINKS, M.Se.Tech.
Chemical and Physico-chemical Reactions in the Grinding and Polishing of Glass	127
Dr. F. W. PRESTON
An Investigation of the Nature of Rouge Cake	133
W. M. HAMPTON, Ph.D., B.Sc., F.Inst.P., A.I.C.
Old London Glasshouses. I. Southwark	137
FRANCIS BUCKLEY, F.S.A.
The Ternary System K₂O-CaO-SiO₂	149
G. W. MOREY, F. C. KRACEK, and N. L. BOWEN
The Thermal Endurance of Glass	188
C. E. GOULD and W. M. HAMPTON, Ph.D., B.Sc., F.Inst.P., A.I.C.
Some Observations on the Manufacture of Refractory Products in the U.S.A.	205
G. V. EVERS
The Structure of Glasses: The Evidence of X-Ray Diffraction	219
J. T. RANDALL, H. P. ROOKSBY, and B. S. COOPER
On the Theory of the Composition of Glass	229
Professor E. ZSCHIMMER
Some Experiments on the Cascade Method of Melting Glass	249
T. C. MOORSHEAD and E. A. LOAD-PRYOR, B.A.
The Mechanical Handling of Raw and Manufactured Material under the Conditions obtaining in Glass Works.	263
T. E. DIMBLEBY, A.M.I.Mech.E.
On the Dependence of the Properties of Glass on its Thermal History	280
Dr. E. BERGER
The Structure of Silicates	295
Professor W. L. BRAGG, F.R.S.
Progress in Glass Technology under the Auspices of the Glass Delegacy	307
The Thermal Endurance of Glass. An Examination of the Proposals of Gould and Hampton
W. J. A. WARREN, B.Sc.	313
A Suggested Method for Determining the Plasticity of Clays, and Some Applications of it	330
E. J. C. BOWMAKER, B.Sc.
On the Supposed Diphasic Nature of Glass	349
Dr. F. W. PRESTON
The Effect on the Properties of a Soda-Lime-Silica Glass of Repeated Melting in Platinum. The X-Ray Pattern	351
Professor W. E. S. TURNER
The Development and Trend of the Mechanical Production of White Hollow Glass Ware	353
Dr. A. WENDLER .
The Scientific Basis of Glass Melting	368
Professor W. E. S. TURNER
The Decomposition of Sodium Carbonate by Heat.	394
J. T. HOWARTH, M.Sc. Ph.D., and Professor W. E. S. TURNER
The Reaction between Sodium Carbonate and Silica as Measured by the Decomposition Pressure	402
J. T. HOWARTH, M.Sc. Ph.D., and Professor W. E. S. TURNER
The Decomposition Pressure and the Rate of Decomposition of Calcium Carbonate	409
G. H. Whiting, B.A., Ph.D., and Professor W. E. S. TURNER

Volume XX 1936

Journal of the Society of Glass Technology Volume XX 1936

Proceedings pages are numbered separately from Transactions pages.

PAPERS
The Control of Glass Furnaces.	5
DISCUSSION
Jean Carre's Glass Furnaces.	16
S. E. WINBOLT, M.A
Organic Glasses.	19
PROFESSOR GILBERT T. MORGAN, O.B.E., D.Sc., LL.D., F.R.S., N. J. L. MEGSON, and E. LEIGHTON HOLMES
Plastics Used in the Manufacture of Laminated Safety Glass	35
J. WILSON, M.C., M.SC.
Cast Iron for the Manufacture of Glass Bottle Moulds.	45
N. L. EVANS, B.Sc., A.I.C., W. GOACHER, A.M.I.Mech.E., A.M.LP.E., and J. E. HURST
The Simultaneous Measurement of Viscosity and Electrical Conductivity of Some Fused Silicates at Temperatures up to 1400°.	54
M. P. VOLAROVICH and D. M. TOLSTOI
The Chemical Activity of Refractories.	61
J. F. HYSLOP, B.Sc.
Cast Iron for the Manufacture of Glass Bottle Moulds. (Discussion)	63
N. L. EVANS, B.Sc., A.I.C., W. GOACHER, A.M.I.Mech.E., A.M.I.P.E., and J. E. HURST.
The Effect of Width on the Breaking Strength of Sheet Glass.	72
A. J. HOLLAND, M.Sc., A.R.C.Sc., D.I.C., and PROFESSOR W. E. S. TURNER
Otto Schott and His Work.	84
PROFESSOR W. E. S. TURNER
The Influence of Cullet on the Reactions Occurring During the Melting of Glass.	95
PROFESSOR M. A. BESBORODOV, N. D. ZAVJALOV, and E. N. ZELIGER
Some Considerations in Photographing Glass for Commercial Purposes.	104
C. WORMALD, F.R.P.S.
Technical Aspects of the Photography of Glass.	110
A. ERIC J. VICKERS
The Effect of Illumination Conditions and Camera Position on the Photographs of Cut Glassware.	119
FLORENCE M. ANTHONY, B.Sc., and BERTHA GINSBURG
Pola Screens and their Applications to the Photography of Glassware.	123
J. L. HOUGHTON
A Study of the Volatilisation of Sulphate from Soda-Lime-Silica Glasses.	127
ERIC PRESTON, B.Sc., Ph.D., PROFESSOR W. E. S. TURNER, and H. LAITHWAITE, B.Sc.Tech.
Determination of the Viscosity of Quartz Glass within the Softening Range.	139
M. P. VOLAROVICH and A. A. LEONTIEVA
Recent Investigations into the Question of the Presence of Compounds in Molten Glass.	144
ERIC PRESTON, B.Sc., Ph.D., and PROFESSOR W. E. S. TURNER
The Behaviour of Glasses under Treatment by the Blow-Lamp Flame.	152
DR. M. THOMAS
The Chemical Composition of Glasses Suitable for the Manufacture of Window Glass by the Automatic Drawing Process.	170
K. KAMITA, H. YAMAMOTO, M. MATSUO, H. YAGAI and H. OTA
Some Properties of " Multicellular " Glasses.	181
DR. B. LONG
The Intensification of Glass Melting Processes.	188
PROFESSOR I. I. KITAIGORODSKY, Dr.Tech.Sc.
The Manufacture of Refractory Articles from Pure Oxides of High Melting Point.	200
J. H. PARTRIDGE, B.Sc., Ph.D., and J. R. LAIT, B.Sc.
Present-Day Glass Decoration by Engraving, Etching, and Sand Blasting.	218
PROFESSOR J. DRAHONOVSKY
The Coloration of Glass by Staining.	225
PROFESSOR P. GILARD and L. DUBRUL
The Studies in Silicate Chemistry of the Geophysical Laboratory of the Carnegie Institution of Washington.	245
G. W. MOREY
Fundamental Principles Underlying the Chemical Corrosion of Glass.	257
DR. E. BERGER
The Breaking Strength of Glass. The Effect of Flaws and Scratches.	279
A. J. HOLLAND, M.Sc., D.I.C., and PROFESSOR W. E. S. TURNER
The Determination of Iron in Glass.	303
N. E. DENSEM, M.Sc.Tech.
The Determination of Small Quantities of Iron Oxide in Raw Materials and Glass.	315
DR.-ING. A. DIETZEL
The Colorimetric Method for the Determination of Small Quantities (Maximum 0-1 per cent.) of Iron Oxide in Raw Materials and Glass.	319
STUDIENPROFESSOR DR.-ING. L. SPRINGER
The Determination of Iron in Sands and Glasses.	324
A. R. WOOD, M.A.
The Estimation of Iron in Sands by the Spectro-graphic Method.	326
P. GILARD, L. DUBRUL, and F. JAMAR
The Determination of Carbon in Glasses Coloured by Carbonaceous Matter.	333
K. FUWA.
A Comparison between the Standard Method and certain more Rapid Methods for the Analysis of Simple Glasses.	338
J. D. CAUWOOD, M.Sc., and VIOLET DIMBLEBY, M.Sc.
The Application of the Reagent 8-Hydroxy-quinoline to the Berzelius Method of Alkali Determination in Soda-Lime-Silica Glasses.	345
R. F. R. SYKES, B.Sc., B.Sc.Tech.
The Determination of Alkali by the Autoclave Method.	351
A. R. WOOD, M.A.
The Application of Spectrographic Methods to Glass Analysis.	352
B. S. COOPER, B.Sc., A.Inst.P
The Problem of Decolorising Glass.	358
F. C. FLINT, B.S.
The Decolorising of Glass-A Review.	375
E. J. GOODING, B.Sc., Ph.D.
The Crushing and Sieving of Glass to Ensure Control of the Surface of the Grains.	384
DR. EDWIN BERGER
A Report of Progress on Glass Durability Methods.	405
W. C. TAYLOR
A Note on a Powder Method of Comparing the Solubilities of Glasses.	416
A. R. WOOD, M.A.
A Critical Examination of the Standard Test for the Chemical Durability of Glass Bottles.	418
A. COUSEN, Ph.D., M.Sc., .A.R.C.S.
The Mechanical Strength of Glass.	428
A. J. PAGE HOLLAND , M.Sc., D.I.C., and PROFESSOR W. E. S. TURNER
Some Factors which Influence the Results in Tests of the Mechanical Strength of Glass.	429
E. ALBRECHT
The Nature of the Mechanical Strength of Glass.	432
PROFESSOR DR. A. SMEKAL
The Influence of Specimen Width on the Breaking Strength of Sheet Glass.	449
PROFESSOR DR. A. SMEKAL
Suggested Standards for the Testing of Safety Glass.	454
ING. F. VERSEN
The Thermal Endurance of Glass.	461
W. HAMPTON, B.SeM.., Ph.D.
General Methods of Determining the Thermal Endurance of Glass.	475
DR. H. SCHONBORN
A Proposed Standard Thermal Endurance Test based on the Use of Glass Rods-A Report of the Glass Standards Committee of the Society of Glass Technology.	498
E. SEDDON, B.Sc., Ph.D.
Thermal Endurance Tests for Glassware.	511
J. B. MURGATROYD, B.A.
The Thermal Endurance of Glass Articles.	517
R. W. DOUGLAS, B.Sc., A.Inst.P.
The Thermal Endurance of Glass	524
K. TABATA and T. MORIYA
Co-operative Tests on the Mechanical Strength of Glass.	530
DR. L. NAVIAS
The Testing of Tank Blocks.	536
DR.-ING. 0. BARTSCH
The Testing of Refractory Blocks for Glass Tank Furnaces.	548
J. H. PARTRIDGE, B.Sc., Ph.D
The Testing of Tank Blocks.	566
J. F. HYSLOP, B.Sc.
Fireclay Grog for Glass Refractories.	570
DR.-ING. R. BARTA
The Properties of Open-Hearth Furnace Checker Bricks.	574
T. SWINDEN, D.Met., and J. H. CHESTERS, Ph.D
Bricks of Artificial Agglomerated Mullite for Regenerator Packing.	586
P. BERGERON
Report from Committee II of the D.G.G. on Refractory Materials for Glass Furnace Regenerators. Presented	595
DR.-ING. 0. BARTSCH
Some Technical Proposals and Data for an Examination of the Thermal Performance of Glass Melting 'yanks.	596
DR.-ING. W. FRIEDMANN
Proposals for a Standard Basis for the Expression of Tank Furnace Performances.	640
W. A. MOORSHEAD, A.R.C.Sc.
Methods of Investigating Glass Currents in Tank Furnaces	651
DIPL.-ING. W. SCIINEEKLOTH and DIPL. ING. W. SPIELVOGEL
The Flow of Glass in Tank Furnaces.	676
A. L. MARDEN
Calculation of the Specific Heats of Vitreous Silica and Components of Glasses as Functions of the Temperature	680
A. THURET
Heat Resisting Steels for the Glass Industry.	685
R. J. SARJANT, D.Sc., and T. H. MIDDLEHAM
Glass Grinding and Cutting Tools.	717
A. GUILLEAUME
Sand-blasting and other Processes for Decorating Glass.	724
S. POLLITZER
The Development in the Design of English Glassware during the last Hundred Years.	735
J. H. HOGAN, D.I
The Present Position of Glass Decoration in Germany .	741
PROFESSOR W. VON EIFF
The Artist in the Glass Industry	751
PROFESSOR W. WAGENFELD
Gla ss Decoration in Bohemia in the Era of Empire and Biedermeier	758
DR. F. X. JIRIK
New Developments in Glass for Constructional Purposes.	764
DR. J. POLIVKA

Volume XXI 1937

Content 21

Volume XXII 1938

Content 22

Volume XXIII 1939

Content 23

Volume XXIV 1940

Content 24

Volume XXV 1941

Journal of the Society of Glass Technology Volume XXV 1941

Proceedings pages are numbered separately from Transactions pages.

PAPERS
The Effect of Small Amounts of Certain Colouring Oxides on the Colour of a Soda-Lime-Silica Glass	5
ERIC PRESTON, Ph.D., D.Sc., F.I.C., F.Inst.P., and PROFESSOR W. E. S. TURNER
The Flow of Gases in Natural Draught Furnaces.	21
E. J. GOODING, B.Sc., Ph.D., and M. W. THRING, B.A
Some Observations on the Sampling and Testing of Sands for Making Colourless Glass.	86
A. SHERLOCK
Note on Some Cadmium, Selenium and Sulphur-contain ing Glasses, with Sharp Cut-off and High Total Light Transmission.	95
J. E. STANWORTH, M.Se.Tecb.
V.-Corporate Efforts in the Glass Industry	100
S. B. BAGLEY, LL.D., F.S.G.T.
The Effect of Shape on the Bursting Strength of Tubes.	121
W. M. HAMPTON, Ph.D., B.Sc., F.Inst.P., A.I.C., F.I.E.S., F.S.G.T.
Fundamental Studies of the Melting Processes of Glasses containing Lead Oxide. A Study of the Reactions between Silica and the Oxides of Lead and the Rate of Formation of Glass from them	136
ERIC PRESTON, Ph.D., D.Sc., F.I.C., F.Inst.P., and PROFESSOR W. E. S. TURNER
Some Experiments on the Substitution of Potash in an Alkali-Lead Oxide-Silica Glass for Electric Lamp Purposes	150
By J. H. PARTRIDGE, B.Sc., Ph.D.
Note on the Expansion Characteristics of Glasses for Sodium Vapour Lamp Seals.	159
J. E. STANWORTH, M.Sc.Tech
An Investigation into the Variation with Temperature on the Spectral Transmission of Glasses. I. The Trans-mission in the Visual Spectral Region at Temperatures from 20° to the Softening Point.	164
A. J. HOLLAND, M.Sc., Ph.D., A.R.C.S., D.I.C., and PROFESSOR W. E. S. TURNER
The Effect of Viscosity on the Melting Rate of Soda-Lime-Silica Glasses	221
ERIC PRESTON, Ph.D., D.Sc., F.I.C., F.Inst.P.
Fundamental Studies of the Melting Processes of Glasses Containing Lead Oxide. II. The Effect of Alkali on the Rate of Melting and Devitrification Tem peratures of Alkai-Lead Oxide-Silica Glasses.	231
ERIC PRESTON, Ph.D., D.Sc., F.I.C., F.Inst.P., and PROFESSOR W. E. S. TURNER
Fundamental Studies of the Melting Processes of Glasses Containing Lead Oxide. III. The Effect on the Melting Rate and Devitrification Temperature of a Potash-Lead Oxide-Silica Glass of the Substitution of Lead Oxide by Lime or Barium Oxide, Including an Examination of Some Commercial Glass Compositions.	241
ERIC PRESTON, Ph.D., D.Sc., F.I.C., F.Inst.P., and PROFESSOR W. E. S. TURNER
A Proposed Method for Calculating the Performance of Glass Tank Furnaces.	249
W. M. HAMPTON, B.Sc., Ph.D., F.Inst.P., F.S.G.T.
Principles Underlying the Calculation of Furnace Per formance.	270
W. A. MOORSHEAD, A.R.C.S.
Some Notes on Proposed Methods of Calculating Fur nace.Performance	289
H: L. CROOK, B .A.
Progress in Technical Development and Research under the Auspices of the Glass Delegacy during the Year 1940-41	297
An Investigation of the Temperature Gradients Established in Refractory Blocks during their Firing.	310
ERIC PRES Ph.D., D.Sc., F.I.C., F.Inst.P., and PROFESSOR W. E. S. TURNER

Volume XXVI 1942

Journal of the Society of Glass Technology Volume XXVI 1942

Proceedings pages are numbered separately from Transactions pages.

PAPERS
High Temperature Recuperators.	5
J. B. WAGSTAFF S.M., B.Sc.
The Interpretation of Thermal Endurance Tests on Glass Containers.	22
J. B. MURGATROYD, B.A.
The Influence of Temperature on the Mechanical Strength of Glass.	35
G. O. JONES, B.A., B.Sc., Ph.D., and PROFESSOR W. E. S. TURNER
The Commercial Use of Scientific Data-with Special Reference to Illuminating Glassware.	62
S. ENGLISH, D.Sc., F.I.C., F.Inst.P.
The Structure and Constitution of Glass.	82
ERIC PRESTON, Ph.D., D.Sc., F.I.C., F.Inst.P.
The Performance of Glass Tank Furnaces. Discussion	108
Some Fundamental Aspects of Heat Transmission by Radiation from Flames and Furnace Linings.	113
E. C. W. SMITH, B.Sc., A. L. ROBERTS, Ph.D., and D. T. A. TOWNEND, D.Sc., Ph.D., D.I.C.
The Hardness and Scratch Resistance of Plastics. A New Method of Test.	130
D. STARKIE, M.SC., Ph.D.
The Utilisation of Low-Grade Fuels in Gas Producers.	145
M. W. THRING, B.A
The Significance of Surface Marks on Fractured Glass	155
J. B. MURGATROYD, B.A., F.S.G.T.
The Behaviour of Tuck-Stones in a Glass Tank Furnace.	172
J. H. PARTRIDGE, B.Sc., Ph.D., F.S.G.T.
Cords, Surface Condition, and the Quality of Glassware.	177
A. J. HOLLAND, M.Sc., Ph.D., A.R.C.S., D.I.C., E. PRESTON, Ph.D., D.Sc., F.I.C., F.Inst.P., and PROFESSOR W. E. S. TURNER
Strength of Bottles as Affected by Limitations of Manufacturing Processes.	196
F. W. PRESTON
Addendum to " The Significance of Surface Marks on Fractured Glass."	214
J. B. MURGATROYD, B.A., F.S.G.T.
The Viscosity and Working Characteristics of Glasses. Part I. The Viscosity of Some Commercial Glasses at Temperatures Between Approximately 500° and 1400°.	215
J. BOOW, B.Sc.Tech., Ph.D., and PROFESSOR W. E. S. TURNER.
Progress in Technical Development and Research under the Auspices of the Glass Delegacy during the Year 1941-42.	241
The Visual Spectrophotometry of Glasses, with Special Reference to Low Absorptive Glasses.	254
T. H. WANG, M.Sc., D.I.C.
Some Spectrophotometric Investigations on Iron Oxide-Containing Soda-Lime-Silica Glasses. Part I. The Influence of Concentration and Ferric-Ferrous Dissociation.	272
T. H. WANG, M.Sc., D.I.C., and PROFESSOR W. E. S. TURNER

Volume XXVII 1943

Journal of the Society of Glass Technology Volume XXVII 1943

Proceedings pages are numbered separately from Transactions pages.

PAPERS
The Effect of Shape on the Thermal Endurance of Glass Rods.	5
J. B. MURGATROYD, B.A., F.S.G.T.
The Effect of Arsenic on the Melting and Refining Rate in a Tank Furnace of Soda-Lime-Silica Glass for Colourless Containers.	18
FRANCIS WINKS, M.Sc.Tech., F.S.G.T.
The Measurement and Control of Liquid Steel Temperatures.	22
T. LAND, M.A.
Method and Apparatus for Producing Samples of High Melting Point Glass.	32
M. PIRANI, Ph.D., F.Inst.P., F.S.G.T.
The Electrical Breakdown of Glasses at Elevated Temperatures.	38
M. PIRANI, Ph.D., F.Inst.P., F.S.G.T.
The Problem of Cords in Glass.	42
PROFESSOR W. E. S. TURNER
A Suggested Procedure for the Examination after Failure of Glass-Melting Pots.	53
ERIC PRESTON, Ph.D., D.Sc., F.I.C., F.Inst.P.
Some Spectrophotometric Investigations on Iron-Containing Soda-Lime-Silica Glasses. Part II. The Effect of Arsenic and Antimony Oxides.	60
T. H. WANG, M.Sc., D.I.C., and PROFESSOR W. E. S. TURNER.
The Effect of Shape on the Thermal Endurance of Cylindrical Glass Containers.	77
J. B. MURGATROYD, B.A.
The Viscosity and Working Properties of Glass. Part II. The Rate of Cooling and Setting of Colourless and Coloured Glasses.	94
JAMES BOOW, B.Sc.Tech., Ph.D., and PROFESSOR W. E. S. TURNER
Edmond Feil. The First Successful Manufacturer of Optical Glass in America.	113
W. H. S. CHANCE, M.A.
Coloured Glasses. Part I.	133
WOLDEMAR A. WEYL
The Viscosity and Working Characteristics of Glasses. Part III. Some Observations on the Rate of Cooling and Viscosity of Glasses during Manipulation by Hand	207
JAMES BOOW, B.Sc.Tech., Ph.D., and PROFESSOR W. E. S. TURNER
The Development of Light Weight Glass Containers in the U.S.	238
F. W. PRESTON
Progress in Education, Research and Technical Development under the Auspices of the Glass Delegacy during the year 1942-43	250
Coloured Glasses. Part II. The Colour of Glasses Produced by Various Colouring Ions.	265
WOLDEMAR A. WEYL

Volume XXVIII 1944

Journal of the Society of Glass Technology Volume XXVIII 1944

Proceedings pages are numbered separately from Transactions pages.

PAPERS
The Behaviour of Glass Under Impact and Static Loading.	5
R. N. HAWARD, B.Sc., Ph.D.
The Assessment of the Thermal Performance of Tank Furnaces for Melting Glass.	33
FURNACE COMMITTEE
A Test of the Thermal Performance Formula Based on a Glass Melting Tank Furnace Fired by Coke-Oven Gas.	53
L. MOXON, F. WINKS, M.Sc.Tech., F.S.G.T., and B. P. DUDDING, M.B.E., Ph.D., F.Inst.P., F.S.G.T.
Retrospect and Prospect.	92
HARRY MOORE, A.R.C.S., D.Sc., F.Inst.P., F.S.G.T.
Glass-Making at 2000 ° C. By J. H. PARTRIDGE, B.Sc., Ph.D., and O. ADAMS, B.Sc.	105
The Ternary Diagram of the Durability of the Na 2 O-CaO-SiO 2 Glasses towards Sodium Carbonate Solutions	113
PROFESSOR M. A. BESBORODOV, D.Sc.Tech.
The Glassy Matrix in Tank Blocks.	119
J. H. PARTRIDGE, B.Sc., Ph.D., and K. SEAL.
The Behaviour of Laminated and Toughened Glass under Static Bending and Impact at Different Velocities	133
R. N. HAWARD, B.A., Ph.D
The Variation of Apparent Porosity Through a Slip-Cast Sillimanite Tank-Block.	152
JAMES BOOW, B.Sc.Tech., Ph.D., and G. E. WALKER, B.Sc.Tech.
Coloured Glasses. Part II (continued).-The Colour of Glasses Produced by Various Colouring Ions.	158
WOLDEMAR A. WEYL
Coloured Glasses. Part III.-The Colours Imparted by the Non-Metallic Elements; Sulphur, Selenium, Tellurium, and Phosphorus and Their Compounds.	267
WOLDEMAR A. WEYL
Education and Research during 1943--44 under the Auspices of the Glass Delegacy	355
The Strength of Glass Fibres. Part I. Elastic Properties.	368
J. B. MURGATROYD, B.A., F.S.G.T.
The Strength of Glass Fibres. Part II. The Effect of Heat Treatment on Strength.	388
J. B. MURGATROYD, B.A., F.S.G.T.
The Mechanism of Brittle Rupture in Glass.	406
J. B. MURGATROYD, B.A., F.S.G.T.
The Determination of the Elastic and Viscous Properties of Glass at Temperatures below the Annealing Range.	432
G. O. JONES, M.A., B.Sc., Ph.D.
Energy Additivity in Glasses.	463
MAURICE L. HUGGINS and KUAN-HAN SUN, M.S., Ph.D.
The Behaviour of Laminated and Toughened Glass under Static Bending and Impact at Different Velocities	469
R. N. HAWARD, B.A., Ph.D. (Discussion)

Volume XXIX 1945

Journal of the Society of Glass Technology Volume XXIX 1945

Proceedings pages are numbered separately from Transactions pages.

PAPERS
Studies in the Distribution of Temperature through Molten Glasses in a Tank Melting Furnace. Part I. Laboratory Measurements on Some Commercial Glasses.	5
R. HALLE, B.Sc.Tech., Ph.D., and PROFESSOR W. E. S. TURNER
Note on Silicon Stones in Glass.	35
C. E. GOULD, J. DAVIES and A. J. HOLLAND
The Influence of Boric Oxide on the Crystallisation of Soda-Potash-Lime-Silica Glass.	38
G. E. WALKER, B.Sc.Tech.
Glass-to-Metal Seals.	48
G. D. REDSTON, B.Sc.Tech., and J. E. STANWORTH, M.Sc.Tech.
Sealing Glasses.	77
A. E. DALE and J. E. STANWORTH M.Sc.Tech.
Glass-to-Metal Seals, with Particular Reference to Current Lead-In Seals in Vacuum Devices.	92
R. W. DOUGLAS, B.Sc., F.Inst.P.
The Stress-Optical Coefficient of Glasses.	111
W. BALMFORTH, B.Sc.Tech., and A. J. HOLLAND, M.Sc., Ph.D., A.R.C.S., D.I.C.
A Projection Type of Strain-Viewer.	124
J. FORTEY, B.Sc.
The Preparation of Standard Glass Discs for the Testing of Internal Strain in Glassware.	129
T. D. GREEN
The Preparation of the British Model of Standard Strain Discs.	148
A. J. HOLLAND, M.Sc., Ph.D., A.R.C.S., D.I.C.
Studies in the Distribution of Temperature through Molten Glasses in a Tank Melting Furnace. Part II. The Effect of Iron Oxide and its State of Oxidation on Heat Transmission.	170
ROBERT HALLE, B.Sc.Tech., Ph.D., and PROFESSOR W. E. S. TURNER
The Effect of Chemical Composition on the Relationship between Refractive Index and Abbe Value for Binary Systems.	192
KUALA-HAN SUN and MAURICE L. HUGGINS
The Behaviour of Laminated and Toughened Glass under Impact by a Falling Bolt.	197
R. N. HAWARD, B.A., Ph.D.
The Viscosity and Working Characteristics of Glasses. Part IV. Some Observations on the Rate of Cooling and Viscosity of Glasses during Manipulation by Automatic Machines.	199
JAMES BOOW, B.Sc.Tech., Ph.D., and PROFESSOR W. E. S. TURNER
The Viscosity and Working Characteristics of Glasses. Part V. Temperature Measurements during the Manipulation of Glass by Semi-Automatic Presses.	233
JAMES BOOW, B.Sc.Tech., Ph.D., and PROFESSOR W. E. S. TURNER
An Examination of the Heavy Mineral Content of Silica Sands Used for Glass-making	250
F. W. ADAMS, M.Sc.
The Identification by X-rays of Heavy Minerals in Fairlight (Sussex) and other Glass-making Sands.	258
H. P. ROOKSBY, B.Sc., F.Inst.P.
A Note on the Heavy Minerals Present in Some British Glass-making Sands.	266
W. DAVIES, M.SC., Ph.D., F.G.S., and W. J. REES, O.B.E., D.Sc.Tech., F.R.I.C., F.S.G.T
Some Methods for the Purification of Sands for Glassmaking.	268
A. SHERLOCK
The Millstone Grit of the Yorkshire Dales as a Source of Glass making Sand.	273
W. DAVIES, M.Sc., Ph.D., F.G.S., and W. J. REES, O.B.E., D.Sc.Tech., F.R.I.C., F.S.G.T.
The Specific Surface and Grain-shape of Silica Sands Used for Glass-making.	279
W. DAVIES, M.Sc., Ph.D., F.G:S., and W. J. REES, O.B.E., D.Sc.Tech., F.R.I.C., F.S.G.T.
Coloured Glasses.	289
WOLDEMAR A. WEYL
The Influence of Boric Oxide on the Refractive Index and Dispersion of Soda-Boric Oxide-Silica Glasses.	390
T. H. WANG, M.Sc., D.I.C., and PROFESSOR W. E. S. TURNER	397
Teaching, Research and Other Technical Activities under the Auspices of the Glass Delegacy during the Year 1944-45
On the Viscosity of Some Glasses in the Annealing Range.	414
A. E. DALE, B.Sc., and J. E. STANWORTH, M.Sc.Tech.
The Effect of Chemical Composition on the Refractive Index and Abbe Value of Ternary Silicate Glass Systems.	428
MAURICE L. HUGGINS, KUAN-HAN SUN and RUTH M. WELCH
Some Experiments on the Substitution of Lead Oxide in an Alkali-Lead Oxide-Silica Glass for Electrical Purposes.	434
J. H. PARTRIDGE, B.Sc., Ph.D.

Volume XXX 1946

Journal of the Society of Glass Technology Volume XXX 1946

Proceedings pages are numbered separately from Transactions pages.

PAPERS
The Rate of Creep at Elevated Temperatures of Four Sillimanite Tank Blocks.	5
JAMES BOOW, B.Sc.Tech., Ph.D., and G. E. WALKER, B.Sc.Tech.
A Further Study of the Performance of a Glass-Melting Tank Furnace Fired by Coke Oven Gas.	13
B. P. DUDDING, M.B.E., Ph.D., F.Inst.P., F.S.G.T
The Physical Properties of Glass in Relation to its Structure.	31
J. M. STEVELS
The Structure of Glass	54
J. E. STANWORTH, M.Sc.Tech.
The Technique of Glass-to-Metal Sealing with Special Reference to Vacuum-Tight Seals.	67
A. G. LONG
Coloured Glasses. Part V. The Fluorescence and the Solarisation of Glass.	90
WOLDEMAR A. WEYL
The Physical Properties of Glasses. Part III. The Density of Borate Glasses.	173
J. M. STEVELS
VIII.-The Physical Properties of Glasses. Part IV. The Density of Phosphate and Germanate Glasses.	192
J. M. STEVELS
A Brief History of the Wear Glass Works.	198
C. J. PURSER-HOPE, B.Sc.Tech.
Stresses in Glass-to-Metal Bead Seals at Room Temperature.	201
G. D. REDSTON, B.Sc.Tech., and J. E. STANWORTH, M.Sc.Tech., F.S.G.T.
The Effect of Heat Treatment in Different Atmospheres on the Stress in Tungsten-to-Glass Seals.	217
M. MANNERS, B.Sc.Tech., Ph.D.
Impact Marks in Glass.	239
J. G. HOLMES, A.R.C.S., B.Sc:, F.Inst.P.
Further Studies of the Thermal Performance of Glass Melting Tank Furnaces.	243
B. P. DUDDING, M.B.E., Ph.D., F.Inst.P., F.S.G.T.
The Efficiency of Glass-Melting Tank Furnaces. Some Calculations of the Quantity Termed " Heat-Availability."	278
D. SISMEY, B.Sc., M.Inst.F.
Some Deductions from the Furnace Performance Formula.	295
C. E. GOULD
The Physical Properties of Glasses. Part V. A Peculiar Phenomenon in the Vitreous System Na 2 O-B 2 O 3 .	303
J. M. STEVELS
The Physical Properties of Glasses. Part VI. The Relationship between the Volume and the Number of Glass-Forming Ions in Silicate Glasses.	306
J. M. STEVELS
The Physical Properties of Glasses. Part VII. The Molecular Refraction of Glasses.	310
J. M. STEVELS
Additive Energy Relationships in Oxygen-Containing Crystals and Glasses.	318
MAURICE L. HUGGINS and KUAN-HAN SUN
The Effect of Changes of Composition on Density Changes in Silicate Glasses.	327
KUAN-HAN SUN and MAURICE L. HUGGINS
The Representation of the Density and Optical Properties of Ternary Silicate Glass Systems by Contour Maps.	333
KUAN-HAN SUN, RUTH M. WELCH and MAURICE L. HUGGINS
Studies in the Distribution of Temperature through Molten Glasses in a Tank Melting Furnace. Part III. The Effect of Glass Composition.	343
R. S. ALLISON, B.Sc., R. HALLS, B.Sc.Tech., Ph.D., and Prof. W. E. S. TURNER
Studies in the Distribution of Temperature through Molten Glasses in a Tank Melting Furnace. Part IV. The Effect of Cobalt Oxide on the Temperature of Soda-Lime-Silica Glasses at Different Depths in a Laboratory Scale Furnace.	356
R. S. ALLISON, B.Sc., R. HALLS, B.Sc.Tech., Ph.D., and Prof. W. E. S. TURNER
Impressions of the American Glass Industry.	364
T. WARDLEY.
Some Investigations of Alumino-Phosphate and Alumino Silicate Glasses.	381
J. E. STANWORTH, M.Sc.Tech., F.S.G.T.

Volume XXXI 1947

Journal of the Society of Glass Technology Volume XXXI 1947

Proceedings pages are numbered separately from Transactions pages.

PAPERS
The Glass Industry in Transition.	5
GEOFFREY MARCHAND, M.A., F.R.S.A., F.I.I.A., F.S.G.T.
The Delayed Elastic Effect in Silicate Glasses at Room Temperature.	17
J. B. MURGATROYD, M.A., F.S.G.T., and R. F. R. SYKES, B.Sc., B.Sc.Tech.
The Relation between the Delayed Elastic Effect and the Decay of Strength of Silicate Glasses at Room Temperature.	36
J. B. MURGATROYD, M.A., F.S.G.T., and R. F. R. SYKES, B.Sc., B.Sc.Tech.
The Relation between the Physical Properties and the Structure of Glass. Part I. Variations of the Physical Properties with Time.	50
R. W. DOUGLAS, B.Sc., F.Inst.P.
The Relation between the Physical Properties and the Structure of Glass. Part II. Viscosity as a Function of Temperature.	74
R. W. DOUGLAS, B.Sc., F.Inst.P
Some Comments on the American Glass Industry.	90
W. M. HAMPTON, Ph.D., B.Sc., F.R.I.C., F.Inst.P., F.S.G.T.
Notes on Some American High Temperature Furnaces.	94
H. S. Y. GILL, B.Sc.Tecb.
Some Impressions of the Refractories Industry in the United States.	97
D. DIXON, A.C.I.S.
The Colour and Constitution of Glass.	100
H. COLE, M.A., F.R.I.C.
The Constitution of Coloured Glasses. (+ Discussion)	105
H. COLE, M.A., F.R.I.C.
Glass Network Formation and the Covalency Factor.	114
H. COLE, M.A., F.R.I.C.
Studies in the Distribution of Temperature Through Molten Glasses in a Tank-Melting Furnace. Part V. The Distribution of Temperature in Commercial Tank-Melting Furnaces.	122
R. HALLE , B.Sc.Tech., Ph.D., F.R.S.A.
The Meaning of the Term " Diathermancy," and the Heating of Glass in Tank Furnaces.	134
DR. F. W. PRESTON
The Physical Properties of Glass. Parts I and II. (Discussion)	141
R. W. DOUGLAS, B.Sc., F.Inst.P.
A Note on the Statistical Examination of Some Results of Porosity and After-Contraction Tests on Refractory Specimens.	147
S. C. WATERTON, B.Se., Ph.D
Lanthanum and Barium in Glass-Forming Systems.	153
GORDON F. BREWSTER, NORBERT J. KREIDL and TYLER G. PETT
The Application of Magnesium Fluoride Anti-Reflection Films to Glass Surfaces.	170
S. BATESON, Ph.D
The Rate of Wear of Tank Blocks in Service.	194
H. WHITTAKER and E. SEDDON, B.Sc., Ph.D., F.Inst.P., F.Inst.F.
The Temperature Gradient in Glass Tank Melting Furnaces.	213
C. E. GOULD
Tbe Influence of Delayed Elasticity on the Rate of Annealing of Glass.	218
G. 0. JONES, M.A., B.Sc., Ph.D
The Determination of Sodium Oxide in Glass by Use of Zinc Uranyl Acetate.	228
J. T. JONES
Fundamental Conditions for Glass Formation.	245
KUAN-HAN SUN
The Contribution to the Refractive Index and Abbe Value of a Glass by the Oxide Components.	254
KUAN-HAN SUN
Fine-grained Sand for Glass Melting.	259
FINN GJESMOE
Physical Processes Involved in Sintering.	264
D. H. BANGHAM
The Swelling of Coals. Model Experiments with Glass.	267
D. H. BANGHAM, J. H. MCKEE and M. PIRANI
The Strength of Sintered Powder Artefacts.	270
M. PIRANI, Ph.D., F.Inst.P., F.S.G.T., and J. H. MCKEE, M.A., B.Sc., A.R.I.C.

Volume XXXII 1948

Journal of the Society of Glass Technology Volume XXXII 1948

Proceedings pages are numbered separately from Transactions pages.

PAPERS
The Effect of Low Temperatures on the Breaking Strength of Sheet Glass.	5
A. J. HOLLAND, M.Sc., Ph.D., A.R.C.S., D.I.C.
The Viscosity and Nature of Glass.	20
By J. E. STANWORTH M.Sc.Tech., F.S.G.T.
The Theoretical Development of Simplified Annealing Schedules.	32
G. D. REDSTON, B.Se.Tech., and J. E. STANWORTH, M.Sc.Tech., F.S.G.T.
A Study of Some Special U.V.-Absorbing Glasses which are Transparent to Visible Radiation.	40
V. CTYROKY
The Mechanism of Corrosion of Refractory Materials by Molten Glass.	46
K. E. SEAL, B.Sc., F.G.S.
The Mechanism of the Solution of Pairs of Glasses and of Other Liquids.	62
H. JEBSEN-MARWEDEL
Proposals for an Extended Form of the Thermal Performance Formula for more Accurate Evaluation of Tank Furnace Data.	70
H. BRONDUM-NIELSEN, M.Sc
The Vitreous Enamelling of Glass Containers	88
J. G. GREGORY, B.Sc.
Stresses in Two-Wire Glass-to-Metal Seals.	99
O. ADAMS, B.Sc.
American Practice in the Domestic Glassware Industry.	113
W. MASKILL, B.Sc., A.R.C.S., Ph.D.
The Reduction of Cobalt in Glass.	122
Ing.Dr. M. FANDERLIK and F. SCHILL
A Kinetic Approach to the Theory of the Strength of Glass.	127
S. M. Cox, B.A.
A Note on Very Soft Glasses and Some of Their Electrical Applications.	147
A. E. DALE, B.Sc.Tech., and J. E. STAN-WORTH, M.Sc.Tech., F.S.G.T.
On the Structure of Glass.	154
J. E. STANWORTH, M.Sc.Tech., F.S.G.T
The Use of Scientific Theory in Industry.	173
W. M. HAMPTON, Ph.D., F.Inst.P., F.R.I.C., F.I.E.S., F.S.G.T.
The Application of the Results of Some Steel Furnace Trials to Glass Furnace Practice.	189
M. W. THRING, M.A., F.Inst.P.
The Cinematography of Open-Hearth Furnace Flames.	209
DR. J. H. CHESTERS
The Fracture of Squares of Transparent Plastic Sheeting under Impact at Different Velocities.	211
R. N. HAWARD
New Methods of Gas Analysis.	216
W. J. GOODERHAM
On Cobalt in Glass.J. E. STANWORTH, M.Sc.Tech. F.S.G.T.	224
J. E. STANWORTH, M.Sc.Tech. F.S.G.T.
Solid Liquids. The Meaning of " Undercooled Liquid," or " Supercooled Liquid."	233
DR. F. W. PRESTON
The Surface Properties of Glasses as Affected by Heavy Metal Ions.	247
W. A. WEYL
The Influence of Heavy Metal Ions on the Hygroscopicity of a Glass Surface.	260
M. K. ROMAN, E. C. MARBOE and W. A. WEYL
Some Adhesion Phenomena Involving Glasses, Metals and Fused Salts and their Interpretation.	264
E. C. MARBOE, W. D. SMILEY and W. A. WEYL
Release of Gas Supersaturation from Liquids by Solid Surfaces.	281
EVELYN C. MARBOE and W. A. WEYL
The Delayed Elastic Effect in Glass Fibres and the Constitution of Glass in Fibre Form.	291
J. B. MURGATROYD, M.A.
The Transformation Range in Glass.	301
J. E. STANWORTH, M.Sc.Tech., F.S.G.T
A Study of Configuration Changes in Glass by Means of Density Measurements.	309
R. W. DOUGLAS, B.Sc., F.Inst.P., and G. A. JONES, B.A.
An Elementary Kinetic Theory of Dilute Silica Glass.	340
S. M. Cox, B.A.
The Ionic Structure of Glass.	366
J. E. STANWORTH, M.Sc.Tech., F.S.G.T.
The Delayed Elastic Effect in Glass Fibres and the Constitution of Glass in Fibre Form. (Discussion)	373
J. B. MURGATROYD.
A Note on Some Relations between the Mechanical Strength and the Structure of Glass.	378
PROFESSOR DR. ADOLF G. SMEKAL
What Experiments are Needed in Glass Science?	382
G. 0. JONES
The Principles Underlying the Electric Melting of Glass.	399
IVAN PEYCHES, Agrege de l'Universite, Docteur es Sciences

Volume XXXIII 1949

Journal of the Society of Glass Technology Volume XXXIII 1949

Proceedings pages are numbered separately from Transactions pages.

PAPERS
The Solution of the Refractory Blocks in the Tank Wall of a Glass Melting Furnace.	5
C. E. GOULD
The Measurement of Heat Input into a Furnace.	19
Furnace Committee
The Oxidation of Silicon-Carbide Refractory Materials.	27
A. C. LEA, B.Sc., F.R.I.C.
The Control of Glass Quality by the Measurement of Refractive Index.	51
R. E. BASTICK, B.Sc., Ph.D., A.Inst.P., and C. E. GOULD
Refractive-index Measurements as a Control of the Quality of Lead Glass for Tubing Manufacture.	59
M. MANNERS, B.Sc.Tech., Ph.D., and J. H. PARTRIDGE, Ph.D., D.Sc.
Some Aspects of the Flow Properties of Very High Viscosity	64
G. O. JONES
A Standard Method of Determining Stresses in Glass-to-Metal Seals of the Sandwich and Bead Types.	7
GLASS: MANUFACTURE AND PROPERTIES COMMITTEE
The Economics of Cooling Glass Tanks by Air.	82
C. E. GOULD
Grid Gas in the Czechoslovakian Glass Industry.	89
DR.ING.DR. M. FANDERLIK
The Production of Oxygen.	95
PROFESSOR D. M. NEWITT, F.R.S., and DR. G. G. HASELDEN
The Use of Oxygen in the Ferrous and Non-ferrous Metallurgical Industries. Part I.	103
D. J. O. BRANDT (B.I.S.R.A.)
The Interpretation of the Experimental Data on the Strength of Glass.	120
G. O. JONES
The Flow of Glass.	138
R. W. DOUGLAS, B.Sc., F.Inst.P.
Two Model Laws on Highly Viscous Fluids.	163
PROFESSOR A. H. M. ANDREASEN, D.Sc.Tech.
The Development of Some Very Soft Glasses	167
A. E. DALE, M.Sc.Tech., and J. E. STANWORTH, M.Se.Tech., F.S.G.T.
The Use of Oxygen in the Ferrous and Non-ferrous Metallurgical Industries. Part II.	176
D. J. O. BRANDT
The Routine Control by Density and Thermal Expansion Measurements of Glasses during Manufacture.	188
P. STATON and P. MAYCOCK
Some Observations on Density Changes, their Measurement and Influence on the Quality of Container Glass.	199
A. T. COE
The Dielectric Properties of Glass and their Structural Interpretation.	220
W. A. WEYL
Optical Properties and the Constitution of Glass	239
FRANK L. JONES and NORBERT J. KREIDL
The Solubility of Fluorides in Glass. Part I.	255
R. J. CALLOW
Oxidation-reduction Effects in Glasses of Different Composition.	267
PROFESSOR H. MOORE
That Curious Word " Lehr."	278
PROFESSOR W. E. S. TURNER
The Action of Sulphur Dioxide and of Water on Glass Surfaces.	289
R. W. DOUGLAS, B.Sc., F.Inst.P., F.S.G.T., and J. O. ISARD, M.A.
A Spectrophotometric Study of the Colours Given by Iron in Alkali Lime-Silica and Alkali-Lime-Boro-Silicate Glasses. Part I, The Forms in which the Iron Exists in these Glasses.	336
PROFESSOR H. MOORE and S. N. PRASAD, M.Sc., Ph.D.

Volume XXXIV 1950

Journal of the Society of Glass Technology Volume XXXIV 1950

Proceedings pages are numbered separately from Transactions pages.

PAPERS
Leadless Sealing Glasses.	5
J. E. STANWORTH.
The Packing and Porosity of Grog Particles.	10
T. S. Busy.
A Method for the Determination of the Porosity of Materials in Grain Form.	17
B. EICHLER.
The Identification of Stones in Glass.	25
H. E. TAYLOR and D. K. HILL.
Recent Developments in Gas Producers.	40
G. W. C. ALLAN.
The Sodium Hydride Process and its Application to the Cleaning of Moulds for the Glass Industry.	55
N. L. EVANS.
Evidence Against Oriented Structure in Glass Fibres.	63
W. H. OTTO and F. W. PRESTON.
The Plastic Deformation of Optical Glass.	69
WILFRED TAYLOR,
The Hardness of Glass.	77
DR. W. H. WILLOTT.
The Relation between the Dielectric Losses and the Composition of Glass.	80
DR. J. M. STEVELS
Mould Cleaning by the Vapour Blast Process.	101
E. J. GOODING.
The Baar Collection of Glass.	108
PIERRE BAAR
Some Views on the Breaking of Glass Derived from the Examination of Fracture Surfaces.	114
H. MARSHALL BATESON.
The Evolution of a Small Glass Bottle Factory.	119
HERBERT A. BATESON.
The Mineralogy of some Corroded Firebricks from Glass Tank Furnace Regenerators.	134
LESLIE BOR.
Development of Glasses Transmitting Bactericidal Radiation.	153
J. E. STANWORTH.
Spectrophotometric Study of the Colours Given by Iron in Alkali-Lime-Silica and Alkali-Lime-Borosilicate Glasses. Part II. Reduction-Oxidation Equilibria in Glasses, as Revealed by the Colours Given by Iron. The Influence of Alumina on the Colour.	173
PROFESSOR H. MOORE and S. N. PRASAD.
A Spectrophotometric Study of the Colours Given by Iron in Alkali Lime-Silica and Alkali-Lime-Borosilicate Glasses. Part III. Reduction-Oxidation Equilibria in Glasses Made from Batches Containing Oxidising Agents, as Revealed by the Colours Given by Iron. The Decolorising Effects of Different Oxidising Agents in Glasses Containing Iron.	193
PROFESSOR H. MOORE and S. N. PRASAD.
Magneto-optic Effects in Glass. Part I.	220
H. COLE.
Practical Aspects of the Electric Melting of Glass.	238
EDOUARD V. BOREL
The Rapid Determination of Lead in Glass.	254
H. P. MOLLENHOWER
The Chemical Analysis of a Soda-Lime-Silica-Magnesia Glass.	257
CHEMICAL ANALYSIS COMMITTEE
J. E. STANWORTH.	273
Correction to the paper in the August issue, pp. 153-172
An Experimental Investigation of Alumino-Silicate Refractories of High Purity, for Use in Glass-Melting.	274
PROFESSOR H. MOORE and R. HEELEY.
The Chemical Analysis of a Soda-Boric Oxide-Alumina-Silica Glass of High Silica and Boric Oxide Content.	305
CHEMICAL ANALYSIS COMMITTEE

Volume XXXV 1951

Journal of the Society of Glass Technology Volume XXXV 1951

Proceedings pages are numbered separately from Transactions pages.

PAPERS
The Magnetic Susceptibility and Constitution of Coloured Glasses. Part I. Theoretical Considerations and Experimental Method.	5
H. COLE.
The Magnetic Susceptibility and Constitution of Coloured Glasses. Part II. Glasses Containing Iron Oxide.	25
H. COLE.
Intersecting Rib-marks on Glass.	41
F. W. PRESTON
Limiting Compositions of Binary Glasses of the Type xR 2 O.SiO 2 and of Ternary Glasses of Types xR 2 O.yRO.SiO 2 and xR 2 O.yR 2 O3,.SiO 2 in Relation to Glass Structure.	43
PROFESSOR H. MOORE and M. CAREY.
Magnetic Studies on Glasses Containing Iron, in Relation to Their Colour and Constitution.	58
PROFESSOR H. MOORE and S. KUMAR.
The Determination of Small Quantities of Boric Oxide in Glass.	93
G. R. BALL, B.Sc., and E. W. FAJANS
The Temperature Variation of Thermal Expansion and Electrical Resistivity of a Borosilicate Glass.	103
S. M. Cox, J. F. STIRLING and P. L. KIRBY.
The Electrical Properties of Some Lithia-Containing Glasses.	136
A. E. DALE, E. F. PEGG and J. E. STANWORTH.
Oil-Firing from a Furnace Builder's Point of View.	146
ALEC GARSTANG,
Oil-Firing : The Viewpoint of the Glass Manufacturer.	158
S. KRUSZEWSKI, and DR. E. SEDDON.
The Symposium on Oil-Firing. Discussion of the Papers Presented'.	177
A. GARSTANG, S. KRUSZEWSKI and DR. E. SEDDON.
New Glasses for the Construction of Sodium-Vapour Discharge Lamps.	185
A. E. DALE, and J. E. STANWORTH.
The Porosity of Tank Blocks. Its Measurement and Variation.	193
H. WHITTAKER and DR. E. SEDDON.
Density Changes in Fused Silica.	206
R. W. DOUGLAS, and J. O. ISARD.
The Solubility of Fluorides in Glass. Part II.	226
R. J. CALLOW.
The Use of Electronic Devices in the Glass Industry.	230
By W. J. R. MERREX.
The Surface Tension and Structure of Silicate Slags.	241
T. B. KING,
Astronomical Telescopes.	260
G. M. Sissox.
The Ternary System Na 2 O-B 2 O 3 -SiO 2 .	274
GEORGE W. MOREY.
The Influence of Some Metal Ions on the Devitrification of Glasses.	292
G. D. RIECK and DR. J. M. STEVELS
The Relation between Diameter and Thermal Endurance of Glass Rods.	309
M. D. KARKHANAVALA and PROFESSOR S. R. SCHOLES.
The Relations of Thermal Expansion, Composition and Structure of Glasses. I. The Sodium Oxide-Silica Glasses.	317
PROFESSOR HENRY H. BLAU
The Fracture Velocity of a Glass at Liquid Hydrogen Temperatures.	333
HENRY M. DIMMICK
A Method of Determining the Viscosity of Highly Viscous Materials.	345
FINN GRONLUND.
The Colour of Iron-Containing Glasses of Varying Composition.	368
GORDON F. BREWSTER and NORBERT J. KREIDL.
A Note on Arsenic Glasses.	375
A. E. BADGER and D. E. SHARP
On the Structure of Glass.	392
PROFESSOR ADOLPH G. SMEKAL
The Significance of the Co-ordination Requirements of the Cations in the Constitution of Glass. I. Basic Concepts and the Constitution of Alkali Silicate Glasses.	395
W. A. WEYL.
The Significance of the Co-ordination Requirements of the Cations in the Constitution of Glass. II. The Effect of Temperature and Composition on Oxidation-Reduction Equilibria in Glasses.	396
W. A. WEYL
The Significance of the Co-ordination Requirements of the Cations in the Constitution of Glass. III. The Chemical Durability of Glasses.	401
W. A. WEYL
The Significance of the Co-ordination Requirements of the Cations in the Constitution of Glass. IV. The Atomistic Interpretation of the Melting of Binary Compounds and of the Formation of Eutectic Melts.	405
W. A. WEYL
The Use of Wire Resistance Strain Gauges and a Polarising Microscope to Determine Permanent Stresses in Tempered Glass.	412
I. L. RESNICK and R. E. MOULD
A New Approach to the Study of the Viscosity of Glass in and below the Annealing Range.	421
G. M. BLAIMONT, J. R. G. DE BAST, P. G. MIGEOTTE and H. P. C. VANDECAPELLE
Synthesising Polariscopic Strain-Patterns.	433
F. W. PRESTON.
The Organisation of a Research Centre Devoted to Glass Technology.	452
IVAN PEYCHES.
Some Modest Contributions to Glass Technology in Scotland .	458
JOHN CURRIE.

Volume XXXVI 1952

Content 36

Volume XXXVII 1953

Journal of the Society of Glass Technology Volume XXXVII 1953

Proceedings pages are numbered separately from Transactions pages.

PAPERS
Electrical Conductivity Measurements Using Direct Currents.
P. L. KIRBY
Internal Friction in Glass. Part I. Theoretical Aspects.
P. L. KIRBY
Introduction to the Symposium On Machinery for the Fabrication of Glass Containers.
F. W. HODKIN
Hartford Feeder, Lynch Machines and the Hartford I.S. Machine.
T. W. WARDLEY
Mitchell Feeder-fed Glass-forming Machines.
W. B. MITCHELL
O'Neill Machines.
D. M. MOODY
Suction and Feeder-fed Bottle-making Machines.
J. CREASER, L, G. CREASER and F. W. HODKIN
A Contribution to the Symposium on Machines for the Fabrication Of Glass Containers.
N. E. DENSEM
Improvements Needed in Glass-making Machines.
N. A. NICHOLS
Mitchell Machines.
T. PLATT
O'Neill and Lynch Machines.
E. W. HUNTER
A Contribution to the Symposium On Machines for the Fabrication of Glass Containers.
W. A. MOORSHEAD
The Symposium On Machines for the Fabrication of Glass Containers Discussion
The Chemical Analysis Of Sillimanite in the Form of a Fired Block:
CHEMICAL ANALYSI COMMITTEE
The Spectrographic Analysis Of Glass-making Sands.
W. WARD and F. HARTLEY
The Spontaneous Growth of Silver Films On Glasses Of High Silver Content.
G. E. RINDONE
A Study Of the Reaction Rates between Silica and Other Oxides at Various Temperatures. Part I. Reaction Rates in Binary Mixtures.
ABD-EL-MONEIM ABOU-EL-AZM and H. MOORE
A Study of: the. Reaction Rates between Silica and Other Oxides at Various Temperatures. Part II. Reaction Rates in Ternary Mixtures.
ABD-EL-MONEIM ABOU-EL-AZM and H. MOORE
A Study Of the Reaction -Rates between Silica and Other Oxides at Various Temperatures. Part III. Reaction Rates in Binary and Ternary Mixtures Additional to those Described in Parts I and II.
ABD-EL-MONEIM ABOU-EL-AZM
A Study Of the Reaction Rates between Silica and Other Oxides at Various Temperatures. Part IV: Influence Of the Form in which the Non-silica Constituents are Introduced upon their Rates of Reaction with Silica. ABD-EL-MONEIM ABOU-EL-AZM.
A Study Of the Reaction Rates between Silica and Other Oxides at Various Temperatures. Part V. Theory of Reaction Rates in Binary and Ternary Mixtures.
ABD-EL-MONEIM ABOU-EL-AZM
The Determination Of Small Amounts of Fluorine in Glass.
R. S. ALLISON.
Massive Khasi Sillimanite : A Natural Material Suitable for Tank Blocks.
C. F. GRIFFITH
The Reactions between Glass and Water.
I. R. BEATTIE
Surface Durability Of Optical Glass.
H. E. SIMPSON
Suitable Glass Compositions for Different Methods Of Mechanical Manipulation: Window Glass.
H. COLE
Transmission Of Radiation through Glass in Tank Furnaces.
B. S. KELLETT.
Correction to the paper in the April 1952 issue, pp. 115-123.
A Study of the Reaction Rates between (a) Silica, (b) Alumina, (c) Mullite, (d) Zirconia and Other Oxides at Various Temperatures.
ABD-EL-MONEIM ABOU-EL-AZM
A Note on the Structure of Glass Fibres.
S. BATESON
On the Thermal Shock Resistance Of Sheet Glass.
W. C. LEVEN-GOOD and E. C. MONTGOMERY
The Effects Of Various Oxides On the Viscosity Of Glasses Of the Soda-Lime-Silica Type.
A. G. F. DINGWALL and H. MOORE.

Volume XXVIII 1954

Journal of the Society of Glass Technology Volume XXXVIII 1954

Proceedings pages are numbered separately from Transactions pages.

PAPERS
Michael Edkins and the Problem of English Enamelled Glass
R. J. CHARLESTON
The Effect of Composition on the Manufacture of Glassware by Pressing.
H. S. Y. GILL
Some Mechanical Problems of Glass Presses.
N. A. NICHOLS
Note on the Use of the Term Cut-Off Scar.
A. DINGWALL (Senior)
The Examination of Fusion-cast Refractory Blocks by g -Radiography.
C. F. GRIFFITH and W. B. PRICE
The Influence of Different Elements on the Colour and Magnetic Susceptibility of Glass. Part I. Iron.
J. DE JONG
The Influence of Different Elements on the Colour and Magnetic Susceptibility of Glass. Part II. Titanium and Chromium.
J. DE JONG
Some Distinctive Contours Worn on Alumina-Silica Refractory Faces by Different Molten Glasses: Surface Tension and the Mechanism of Refractory Attack.
H. J. TRESS
Spectrophotometric and Magnetic Studies of Glasses Containing Iron in Relation to Their Structure. Part I. The Forms in which Iron Exists in Glass.
ABD-EL-MONEIM ABOU-EL-AZM
Spectrophotometric and Magnetic Studies of Glasses Containing Iron in Relation to Their Structure. Part II. The Alkali-Silica Glasses.
ABD-EL-MONEIM ABOU-EL-AZM
Spectrophotometric and Magnetic Studies of Glasses Containing Iron in Relation to Their Structure. Part III. Alkali-Silica Glasses Containing the Oxides of Certain Divalent, Trivalent and Tetravalent Metals.
ABD EL-MONEIM ABOU-EL-AZM
Spectrophotometric and Magnetic Studies of Glasses Containing Iron in Relation to Their Structure. Part IV. Borate, Cabal and Phosphate Glasses.
ABD-EL-MONEIM ABOU-EL-AZM
Spectrophotometric and Magnetic Studies of Glasses Containing Iron in Relation to Their Structure. Part V. Applicability of the Colour and Magnetic Measurements to the Study of the States of Iron in the Glass, the Structure of Glass and the Roles Played by Various " Decolorisers."
ABD-EL-MONEIM ABDU - EL-AZM .
The Determination of Fluorine in Glass by the Lead Chloro-fluoride :Method-Application to Silicate Glasses of High Alumina and High Boric Oxide Content.
P. M. C. PROFFITT, JEAN E. HANSEN and H. J. CLULEY
Compressed Glass-to-metal Seals.
H. ADAM
Further Investigations upon the Influence of Boric Oxide on the Rate of Melting of the Batch, and on the Rate of Refining and of Setting of Commercial Glasses of the Soda-Lime-Silica Type.
R. S. ALLISON and W. E. S. TURNER
PRESIDENTIAL ADDRESS
What Is It All About?
Sir GRAHAM CUNNINGHAM
Differential Thermal Analysis.
F. W. WILBURN
Internal Friction in Glass. Part II. Flexural and Torsional Vibrations.
P. L. KIRBY
Infra-red Transmission Properties of Black Tellurite Glasses.
J. A. JAMES and J. E. STANWORTH
Tellurite Glasses.
J. E. STANWORTH
Studies of Ancient Glass and Glass-making Processes. Part I. Crucibles and Melting Temperatures Employed in Ancient Egypt at about 1370 B.C.
W. E. S. TURNER
Studies of Ancient Glasses and Glass-making Processes. Part II. The Composition, Weathering Characteristics and Historical Significance of Some Assyrian Glasses of the Eighth to Sixth Centuries B.C. from Nimrud .
W. E. S. TURNER
A Glass Surface Temperature Pyrometer.
J. R. BEATTIE
Report on a New Post-war Furnace.
W. A. MOORSHEAD.
The Diamond Pyramid Hardness of Glass in Relation to the Strength and Structure of Glass. Part I. An Investigation of the Diamond Pyramid Hardness Test Applied to Glass.
L. AINSWORTH
The Diamond Pyramid Hardness of Glass in Relation to the Strength and Structure of Glass. Part II. Silicate Glass.
L. AINSWORTH .
The Diamond Pyramid Hardness of Glass in Relation to the Strength and Structure of Glass. Part III. The Structure of Borosilicate Glasses.
L. AINSWORTH
Internal Friction in Glass. Part III. Strain Relaxation.
P. L. KIRBY

Volume IXL 1955

Journal of the Society of Glass Technology Volume IXL 1955

Proceedings pages are numbered separately from Transactions pages.

PAPERS
The Infra-red Transmission of Glass in the Range Room Temperature to 1400 °	3
F. J. GROVE and P. E. JELLYMAN
Atomistic Interpretation of the Effect of the Composition on the Viscosity of Glass	16
EVELYN C. MARBOE and W. A. WEYL
The Story of Fused Silica	37
G. E. STEPHENSON
Optical Fused Quartz and Its Contributions to Research	48
A. E. J. VICKERS
The Future of Quartz and Silica	58
F. J. EDWARDS
The Relaxation of Stress in Fused Silica. Part I. Experimental	61
J. O. ISARD and R. W. DOUGLAS
The Relaxation of Stress in Fused Silica. Part II. Theoretical	83
J. O. ISARD and R. W. DOUGLAS
The Stress-Time Relation in Glass during Annealing	99
H. N. RITLAND
Notes on the System B 2 O 3 -SiO 2 P 2 O 5 . Part I. The BPO 4 SiO 2 Join.	113
W. F. HORN and F. A. HUMMEL
Notes on the System B 2 O 3 SiO 2- P 2 O 5 Part II. The Ternary System.	121
W. J. ENGLERT and F. A. HUMMEL
The Long-continued Action of Water on Window-glass: Weathering of the Mediaeval Glass of Weoley Castle, Birmingham .	128
FRANK RAW
Frozen Strains in Glass Fibres	134
J. F. STIRLING
Theoretical Considerations Regarding the Optimum Dimensions of the Throats of Glass Tank Furnaces	145
A. NARUSE
Spectrographic Estimation of Iron, Titanium and Antimony in Glass.	156
W. WARD and D. D. INNES
A New Process of Glass-melting by Introducing Flames into the Molten Glass	162
E. BRICHARD
Infra-red Reflection Spectra of Glasses	173
P. E. JELLYMAN and J. P. PROCTER
A Simple D.C. Method for the Determination of the Electrical Resistance of Glass	193
H. E. TAYLOR
The Absorptiometric Determination of Al 2 O 3 in Glass Sands	205
Miss P. POOLE and H. D. SEGROVE
A Note on Oxidation Resistant Coatings on Molybdenum and Their Use in Glass Seals for Mercury Lamps	211
H. RAWSON
The Colours of Nickel in Glasses of Various Types and their Implications Concerning Glass Structure. Part I. The Types of Absorption Spectra Given by Nickel in Glass	215
H. MOORE and H. WINKELMANN
The Colours of Nickel in Glasses of Various Types and their Implications Concerning Glass Structure.