Chamber's Encyclopaedia, Volume 3International Learnings Systems, 1967 |
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Page 90
... natural gas in 1872 in Virginia and the channel process was patented in 1892. The great rise in importance of carbon black dates from the discovery in 1904 at Silvertown , Georgia , of its reinforcing pro- perties in rubber . Since 1912 ...
... natural gas in 1872 in Virginia and the channel process was patented in 1892. The great rise in importance of carbon black dates from the discovery in 1904 at Silvertown , Georgia , of its reinforcing pro- perties in rubber . Since 1912 ...
Page 352
... natural specimens of this compound . On the other hand a molecular compound such as AsI , .3S , has constant composition because the stability of this crystal is due to the perfect fitting together of the correct relative numbers of ...
... natural specimens of this compound . On the other hand a molecular compound such as AsI , .3S , has constant composition because the stability of this crystal is due to the perfect fitting together of the correct relative numbers of ...
Page 546
... natural seasons and rising of Sothis , in 120 years a whole month ahead , and so on until in about 1,456 Sothic years ( sometimes slightly longer than 365 days ) it once more coincided with the natural seasons . The heliacal rising of ...
... natural seasons and rising of Sothis , in 120 years a whole month ahead , and so on until in about 1,456 Sothic years ( sometimes slightly longer than 365 days ) it once more coincided with the natural seasons . The heliacal rising of ...
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19th century Africa agricultural ammonia animals atoms Author became benzene born breed Britain British Canada Canadian canal cancer canon law canons carbon dioxide Carboniferous carpets castle catalyst cathedral catholic cattle cell cellulose central centre chansons de geste Charles Chartist chemical chemistry chloride chlorine Christian church coal coast College colony colour compounds containing court death developed early east England English especially Europe France French gases heat History hydrogen important industry islands Italy king known land later lime limestone London Lord mainly manufacture ment metal milk modern molecules nitric acid nitrogen organic original oxide oxygen period plant political port pressure production Professor province railway reaction region river Roman second world war Spain structure sulphuric acid temperature tion town United University usually valley vols western