Annals of Philosophy, Or, Magazine of Chemistry, Mineralogy, Mechanics, Natural History, Agriculture, and the Arts, Volume 9
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Page 420 - ... the particles move round their own axes, and separate from each other, penetrating in right lines through space. Temperature may be conceived to depend upon the velocities of the vibrations; increase of capacity on the motion being performed in greater space; and the diminution of temperature, during the conversion of solids into fluids or...
Page 420 - It seems possible to account for all the phenomena of heat, if it be supposed that in solids the particles are in a constant state of vibratory motion, the particles of the hottest bodies moving with the greatest velocity, and through the greatest space; that in...
Page 460 - Explosion ; an Account of an Invention for giving Light in explosive Mixtures of Fire-Damp in Coal-Mines, by consuming the Fire-Damp ; and further Experiments on the Combustion of explosive Mixtures confined by Wire Gauze; with some Observations on Flame.
Page 206 - It is covered with a whitish bark, slightly bursting in longitudinal furrows. Near the ground this bark is, in old trees, more than half an inch thick, and, upon being wounded, yields plentifully the milky juice from which the celebrated poison is prepared. A puncture or incision being made...
Page 206 - ... which the celebrated poison is prepared. A puncture or incision being made in the tree, the juice or sap appears oozing out, of a yellowish colour ; (somewhat frothy) from old trees, paler ; and nearly white from young ones : when exposed to the air its surface becomes brown.
Page 204 - Amboina, and his description was made from the information he obtained from Macassar. His figure was drawn from a branch of that which was called the male tree, sent to him from the same place, and established the identity of the poison tree of Macassar and the other eastern islands with the antshar of Java. The account of this author is too extensive to be abridged in this place, it concentrates all that has till lately been published on this subject : but the relation is mixed with many...
Page 206 - ... working in the fields. But it requires much bruising, washing, and a long immersion in water before it can be used; and even when it appears completely purified, persons wearing this dress, on being exposed to the rain, are affected with an intolerable itching, which renders their flimsy Covering almost insupportable. It will appear from the account of the manner in which the poison is prepared, that the deleterious quality exists in the gum, a small portion of which still adhering to the bark,...
Page 204 - It is in fact more surprising that a subject of so much notoriety in the district of Blambangan, and of so great celebrity and misrepresentation in every other part of the world, should so long have remained unexplored, than that it should finally have been noticed and described; and since my visit to that province, I have more than once remarked the coincidence which led two persons, of nations different from each other, and from that which has been long in possession of the island, who commenced...
Page 255 - November 1754, with a considerable stock of classical learning, a spirit of persevering industry, and an obstinate provincial accent, to Trinity college, Cambridge, where, from the time of his admission, he distinguished himself by close application to study, residing constantly, until made a scholar in May 1757. He became engaged with private pupils in "November following, and took the degree of BA (with superior credit, being second Wrangler,) in January 1759. He was elected fellow of Trinity college...
Page 100 - ... observe the appearance of the heavens. The stars shone with a lustre that far exceeded the brightness which they exhibit when seen from the usual level ; and had so little tremor in their light, as to leave no doubt on my mind that, if viewed from the summit of the mountain, they would have appeared as fixed points. How improved in those altitudes would be the aids which the telescope gives to vision ; indeed, the clearness of the air was such as led me to think that Jupiter's satellites might...