Medico-physical Works: Being a Translation of Tractatus Quinque Medico-physici

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Alembic Club, 1907 - Oxygen - 331 pages
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Page 39 - He placed on record the view that it is not found "in soil on which plants grow abundantly, the reason being that all the nitre of the soil is sucked out by the plants". Digby, as early as 1669, reported that barley was much benefited by a weak solution of nitre, while Evelyn in 1675 said, "I firmly believe that were saltpetre to be obtained in plenty, we should need but few other composts to meliorate our grounds." Kiibel regarded the juices, or humus of the soil...
Page 73 - From what has been said it is quite certain that i animals in breathing draw from the air certain vital / particles which are also elastic. So that there should be no doubt at all now that an aerial something absolutely necessary to life enters the blood of animals by means of respiration.
Page 20 - Nor should it be overlooked that antimony, calcined by the solar rays, is considerably increased in weight, as has been ascertained by experiment. Indeed, we can scarcely imagine any other source for this increase of the antimony than the nitro-aerial and igneous particles fixed in it during calcination.
Page 35 - Nitro-aerial spirit and sulphur are engaged in perpetual hostilities with each other, and indeed from their mutual struggle when they meet and from their diverse state when they succumb by turns all the changes of things seem to arise.
Page 75 - For let any animal be enclosed in a glass vessel along with a lamp so that the entrance of air from without is prevented, which is easily done if the orifice of the inverted glass be immersed in water in the manner already described. When this is done, we shall soon see the lamp go out and the animal will not long survive the fatal torch. For I have ascertained by experiment that an animal enclosed in a glass vessel along zvith a lamp will not breathe much longer than half the time it would otherwise...
Page 9 - In the second place, it would be reasonable to suppose that the igneous particles of air necessary to the support of all flame reside in sal nitrum and constitute its more active and fiery part, for it is to be noted that nitre mixed with sulphur deflagrates readily enough in a glass which does not contain air, and also under water...
Page 68 - ... vacuum, not only on account of the diminished motion of the igneous particles, but partly also from the lack of elastic particles, as will appear more evident from the following experiments. For instance, let a burning candle be placed in water so that the wick may stand about six finger-breadths above the water, and then let an inverted cuppingglass of sufficient height be put over the light and plunged immediately into the water surrounding the light, as is shown in Plate V., Fig. 1. Care,...
Page 67 - In the first place, then, I take it for granted that the air contains certain particles termed by us elsewhere nitro-aerial which are absolutely indispensable for the production of fire, and that these in the burning of flame are drawn from the air and removed, so that the latter when deprived of these particles ceases to be fit for supporting fire, as has been shown above.
Page 8 - to be admitted that something aerial, whatever it may be, is necessary to the production of any flame — a fact which the experiments of Boyle have placed beyond doubt, since it is established by these experiments that a lighted lamp goes out much sooner in a glass that contains no air than it does in the same when filled with air — a clear proof that the flame goes out . . . because it is deprived of its aerial food.
Page 161 - And the reason of this is, that the acid spirit of salt is capable of entering into closer union with any fixed salt than it is with a volatile salt, so that it immediately leaves the volatile salts that it may be combined more intimately with the fixed salt.

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