Philosophical MagazineTaylor & Francis, 1804 - Physics |
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Page 6
... exposed to the north during winter nineteen of these ants in a flask in such a manner that they should receive none of the sun's rays . During the warmest hours , the thermometer indicated + 5o and 2 ° for the mean cold . These animals ...
... exposed to the north during winter nineteen of these ants in a flask in such a manner that they should receive none of the sun's rays . During the warmest hours , the thermometer indicated + 5o and 2 ° for the mean cold . These animals ...
Page 7
... exposed to the south ; that is to say , the mortality daily increased , and the vitality of the living ones was so ... exposed to the north , I revived them to life on the eighth day , and found sixteen of them alive of seventeen ants ...
... exposed to the south ; that is to say , the mortality daily increased , and the vitality of the living ones was so ... exposed to the north , I revived them to life on the eighth day , and found sixteen of them alive of seventeen ants ...
Page 138
... exposed it in a Cornwall clay pot to 170 ° of Wedgwood ; but found the contents unfused , and still pulverulent . The mixture had become nearly of a black colour , but the fragments of silex re- mained unchanged . III . Fifty grams of ...
... exposed it in a Cornwall clay pot to 170 ° of Wedgwood ; but found the contents unfused , and still pulverulent . The mixture had become nearly of a black colour , but the fragments of silex re- mained unchanged . III . Fifty grams of ...
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