The Philosophical Magazine: Comprehending the Various Branches of Science, the Liberal and Fine Arts, Geology, Agriculture, Manufactures and Commerce, Volume 21

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Richard Taylor and Company, 1805 - Physics
 

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Page 267 - Other labourers follow, and, with the foot, press the set about two inches into the soft mud-like soil ; which, with a sweep or two with the sole of the foot, they most easily and readily cover...
Page 65 - BM in 1707, and took his doctor's degree in 1710. In 1705 he was elected a fellow of the Royal Society, to the transactions of which he had in 1704 contributed a letter " concerning worms in the heads of sheep,
Page 267 - ... their future hopes of profit. Immediately after the field is trenched, the canes are all propped : this is an operation I do not remember to have seen mentioned by any writer on this subject ; and is probably peculiar to these parts.
Page 187 - Brugnatelli3 mentions that he 'had gilt in a complete manner two large silver medals by bringing them into communication by means of a steel wire with the negative pole of a voltaic pile and keeping them one after the other immersed in ammoniuret of gold, newly made and well saturated'.
Page 268 - February the canes are ready to cut, which is about nine months from the time of planting ; of course, I need not describe it. Their height, when standing in the field, will now be from eight to ten feet (foliage included), and the naked cane from an inch to an inch and a quarter in diameter.
Page 324 - Is it not more than possible that the parasitic fungus of the barberry and that of wheat are one and the same species...
Page 325 - ... of plump grain, cannot be doubted; the question is, whether this nutriment in the form of fungi does, or can be made to agree as well with the stomachs of the animals that consume it, as it would do in that of straw and corn. It cannot be improper in this place to remark, that although the seeds of wheat are rendered, by the exhausting power of the fungus, so lean and shrivelled that scarce any flour fit for the manufacture of bread can be obtained by grinding them, these very seeds will, except,...
Page 14 - O grains. C. As the shell lac had not been reduced into powder, " but only into small fragments, these were become white and elastic, and, when dry, were brittle, and of a pale brown colour ; the whole then weighed Q4 grains.
Page 21 - Traps. 1781, p. 380. lac may be found of much utility ; for, like mucilage, they iray be diluted with water, and yet, when dry, are little if at all affected by it.* ** We find, from the experiments on lac, that this substance is soluble in the alkalis, and in some of the acids. But this fact (considering that resin is the principal ingredient of lac) is in opposition to the generally received opinion of chemists, namely, that acids and alkalis do not act upon resinous bodies. Some experiments, however,...
Page 323 - SE side only, but was principally owing to the very wet barThe climate of the British Isles is not the only one that is liable to the Blight in corn ; it happens occasionally in every part of Europe, and probably in all countries where corn is grown.

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