Chemical News and Journal of Physical Science, Tom 117Chemical 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 papers ...
... 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 papers ...
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 12
... GLASS COMPANY , LTD . , BARSLEY . Manufacturers of the W BRAND OF CHEMICAL APPARATUS . Made throughout in our Own Works by BRITISH CAPITAL & BRITISH LABOUR TWO IN UALITIES . ( 1 ) An excellent Soda Glass suitable for ordinary use ...
... GLASS COMPANY , LTD . , BARSLEY . Manufacturers of the W BRAND OF CHEMICAL APPARATUS . Made throughout in our Own Works by BRITISH CAPITAL & BRITISH LABOUR TWO IN UALITIES . ( 1 ) An excellent Soda Glass suitable for ordinary use ...
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 ...
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