Philosophical MagazineTaylor & Francis, 1804 - Physics |
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Page 44
... clay either by ce- mentation or fusion , and the quantities will be to the dif- ferent states of the clay respectively as follows : Raw Sturbridge clay in cementation causes to disap- pear 23 per cent . of carbon , and is thereby ...
... clay either by ce- mentation or fusion , and the quantities will be to the dif- ferent states of the clay respectively as follows : Raw Sturbridge clay in cementation causes to disap- pear 23 per cent . of carbon , and is thereby ...
Page 45
... clay , weighing 15 grains , was placed at a little distance from the ball in the same pot . It was found perfectly ... clay in its native state . The ball weighed , after being exposed , 17 grains ; being five less than the weight of the ...
... clay , weighing 15 grains , was placed at a little distance from the ball in the same pot . It was found perfectly ... clay in its native state . The ball weighed , after being exposed , 17 grains ; being five less than the weight of the ...
Page 46
... clay and chalk , were exposed in the furnace , intimately mixed with 1 grain of carbon . The result was a mass of very fine porcelain minutely porous , of a dull blackish lead co- lour . No remains of carbon were visible . XXV . Fifty ...
... clay and chalk , were exposed in the furnace , intimately mixed with 1 grain of carbon . The result was a mass of very fine porcelain minutely porous , of a dull blackish lead co- lour . No remains of carbon were visible . XXV . Fifty ...
Contents
OF | 3 |
History of Astronomy for the Year 1803 Read at | 10 |
Gerions Errors | 14 |
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Abbé acid acres affinity antient appear astronomers Bacon basaltes carbon carbonic acid cent charcoal colour concave contained copal copper Cornwall Cornwall clay cow-pock crucible crystals cylinder DAVID MUSHET diameter discover distance ditto duced earth effect equal experiments exposed fused fusion glass gold medal grains Great-Britain greatest number greatest quantity guineas heat hitherto inches inoculated integrant particles invent iron Klaproth last Tuesday less letter lime manner mass matter metal method mineralogy mirrors mixture Mont Perdu muriatic muriatic acid nature nitric acid object observed obtained oxide oxygen person Philosophical pipe plane plants platina potash pounds pounds weight premium produced rays Roger Bacon says screw second Tuesday sheep silex silver medal small-pox Society the best specimen steam substance surface telescope temperature thirty guineas tion tube Tuesday in February Tuesday in January vaccine vessel weight whole wool