Chemical News and Journal of Industrial Science, Tomy 117-118Chemical news office., 1918 |
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Strona 5
... glass and porcelain needed constantly by the chemist , but obtainable hitherto only from Germany . In this category falls also the fine quality of optical glass now made in the United States . It All in all the exposition was thoroughly ...
... glass and porcelain needed constantly by the chemist , but obtainable hitherto only from Germany . In this category falls also the fine quality of optical glass now made in the United States . It All in all the exposition was thoroughly ...
Strona 10
... glass , the remnants of the cylinder in their original position will be achromatic . In another , telescopic ; and ... GLASS TECHNOLOGY . Ordinary Meeting , December 19 , 1917 . : - Prof. W. G. FEARNSIDES in the Chair . THE following ...
... glass , the remnants of the cylinder in their original position will be achromatic . In another , telescopic ; and ... GLASS TECHNOLOGY . Ordinary Meeting , December 19 , 1917 . : - Prof. W. G. FEARNSIDES in the Chair . THE following ...
Strona 11
... glass- making , and in addition there ought to be constancy of composition . Unfortunately this could never he realised . A potash content of 10 to 12 per cent was desirable for glass - making felspar , and the soda content should not ...
... glass- making , and in addition there ought to be constancy of composition . Unfortunately this could never he realised . A potash content of 10 to 12 per cent was desirable for glass - making felspar , and the soda content should not ...
Strona 13
... glasses , were con- fined to determinations at ordinary temperatures of such physical properties as density ... glass up to a temperature of 1300 ° C. with an accuracy estimated to be within o'5 per cent . Doelter ( 24 ) has ...
... glasses , were con- fined to determinations at ordinary temperatures of such physical properties as density ... glass up to a temperature of 1300 ° C. with an accuracy estimated to be within o'5 per cent . Doelter ( 24 ) has ...
Strona 24
... Glass Technology , 3.15 . ( In the Music Rooms , Theatre Road , Stourbridge ) . " The Durability of Heavy Lead - Potash Glass ,, " by J. D. Cauwood , W. E. S. Turner , and D. Webb . Aunealing of Glass , " by S. English and W. E. S. ...
... Glass Technology , 3.15 . ( In the Music Rooms , Theatre Road , Stourbridge ) . " The Durability of Heavy Lead - Potash Glass ,, " by J. D. Cauwood , W. E. S. Turner , and D. Webb . Aunealing of Glass , " by S. English and W. E. S. ...
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