The Annals of Philosophy, Volumen15Thomas Thomson, Richard Phillips, Edward William Brayley Baldwin, Cradock, and Joy., 1820 |
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Términos y frases comunes
acid gas alcohol alkali ammonia analysis animal appears arsenic acid atmosphere atom azote barometer Baron von Zach barytes boiling brucine calculation carbonic acid chlorine Cloudy coal colour combined combustion composed considered contains copper crystals cubic inches decomposed determine dissolved Ditto employed ether evaporated experiments exposed fluate fluid give glass grammes heat Hence hydrogen hydrogen gas iron jakut latitude lime liquid lithia Longitude matrass means Memoirs mercury metallic mineral mixed mixture month Morn muriatic acid naphtha nearly nitrate nitric acid Noon observations obtained olefiant oxide oxygen gas paper phosphate phosphoric acid phosphorus portion potash powder precipitate produced proportion pure quantity rain remarkable retort salt sandstone saturation Sect selenium seleniuret silver snow soda soluble solution specific gravity specimens stone strata strontian substance sulphate sulphuret sulphuric acid surface temperature tion tube uric acid vapour volume weight Wind
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Página 389 - ... and slightly wounded with them two young cats. To the one of these, he applied a poultice, composed of the fruit of the fewillea cordifolia, while the other was left without any application. The former suffered no other inconvenience, except from the wound, which speedily healed ; while the other, in a short time, fell into convulsions and died.
Página 47 - That this deviation varies with the dip of the needle, the position of the compass, and the direction of the ship's head. It increases and diminishes with the dip, and vanishes at the magnetic equator. It is a maximum when the ship's course is W. or E., and it is proportional to the sines of the angles between the ship's head and the magnetic meridian.
Página 259 - The whole quantity of water in the atmosphere in January is usually about three inches, as appears from the dew point, which is then about 32°. Now the force of vapour at that temperature is 0'2 of an inch of mercury, which is equal to 2'8 or three inches of water. The dew point in July is usually about 58°...
Página 206 - When the plates come out of the pickle, they are put into pure water, and scoured in it with hemp and sand, to remove any remaining oxide or rust of iron that may be still attached to them, for wherever there is a particle of rust, or even dust upon them, there the tin will not fix ; and they are then put into fresh water to be there preserved for the process of tinning. The design of putting the plates into pure water, after they come out of the sours, is to prevent their becoming again oxidated...
Página 258 - The cause of rain, therefore, is now, I consider, no longer an object of doubt. If two masses of air of unequal temperatures, by the ordinary currents of the winds, are intermixed, when saturated with vapour, a precipitation ensues. If the masses are under saturation, then less precipitation takes place, or none at all, according to the degree. Also the warmer the air, the greater is the quantity of vapour precipitated in like circumstances...
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Página 367 - Then, after a lapse of some weeks, or even months, it would suddenly return, and scarcely reappearing in the parts which had already undergone its ravages, would nearly depopulate the spot that had so lately congratulated itself on its escape. Sometimes, after running a long course on one side of the Ganges, it would, as if arrested by some unknown agent, at once stop; and, taking a rapid sweep across the river, lay all waste on the opposite bank.