Nature, Količina 32Sir Norman Lockyer Macmillan Journals Limited, 1885 |
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Stran 331
... produced , because unless the hydrocarbon could be obtained in large quantities , artificial alizarin_could not compete with madder . In our works at Greenford Green we commenced by distilling pitch ; but afterwards tar distillers were ...
... produced , because unless the hydrocarbon could be obtained in large quantities , artificial alizarin_could not compete with madder . In our works at Greenford Green we commenced by distilling pitch ; but afterwards tar distillers were ...
Stran 332
... produced when phthaiic anhyd- ride is employed and which embrace those of practical value , are called phthalines . The first of these discovered by Baeyer was gallein ( Ber . iv . 457 ) , produced by heating pyrogallol with phthalic ...
... produced when phthaiic anhyd- ride is employed and which embrace those of practical value , are called phthalines . The first of these discovered by Baeyer was gallein ( Ber . iv . 457 ) , produced by heating pyrogallol with phthalic ...
Stran 333
... produced at a few pence per pound . Most of the azo colours produced from ben- zene derivatives are of a yellow or brown colour , but , by taking products of a higher molecular weight , colours of different shades of red are produced ...
... produced at a few pence per pound . Most of the azo colours produced from ben- zene derivatives are of a yellow or brown colour , but , by taking products of a higher molecular weight , colours of different shades of red are produced ...
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Auroral Zone ElevenYear Meridional Oscillation of the Bath Natural History and Antiquarian Field Club | 12 |
Prof Auwers Calculations of Longitude of Places bination of the Ordnance and Admiralty Surveys E | 101 |
Earthquakes in 11 85 460 Industrial Education in Behrens Dr W J Guide for the Microscopical Investiga | 193 |
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