A manual of chemistry, Volume 1

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J. Murray, 1821 - Chemistry - 896 pages
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Page 27 - Full little knowest thou, that hast not tried, What hell it is in suing long to bide ; To lose good days that might be better spent ; To waste long nights in pensive discontent; To speed to-day, to be put back to-morrow ; To feed on hope ; to pine with fear and sorrow ; To have thy Prince's grace, yet want her peers...
Page 288 - ... the angle of reflection is always equal to the angle of incidence, the image for any point can be seen only in the reflected ray prolonged.
Page 126 - Mr. Watt was an extraordinary and in many respects a wonderful man. Perhaps no individual in his age possessed so much and such varied and exact information, had read so much, or remembered what he had read so accurately and well. He had infinite quickness of apprehension, a prodigious memory, and a certain rectifying and methodising power of understanding, which extracted something precious out of all that was presented to it.
Page 126 - It is needless to say, that with those vast resources, his conversation was at all times rich and instructive in no ordinary degree ; but it was, if possible, still more pleasing than wise, and had all the charms of familiarity, with all the substantial treasures of knowledge. No man could be more social in his spirit, less assuming or fastidious in his manners, or more kind and indulgent towards all who approached him. He...
Page 125 - Amidst this company stood Mr Watt, the man whose genius discovered the means of multiplying our national resources to a degree perhaps even beyond his own stupendous powers of calculation and combination ; bringing the treasures of the abyss to the summit of the earth — giving the feeble arm of man the momentum of an Afrite — commanding manufactures to arise, as the rod of the prophet produced water in the desert, affording the means of dispensing with that time and tide which wait for no man,...
Page 130 - I presently found that, by means of this lens, air was expelled from it very readily. Having got about three or four times as much as the bulk of my materials, I admitted water to it, and found that it was not imbibed by it. But what surprised me more than I can well express was that a candle burned in this air with a remarkably vigorous flame...
Page 76 - I do not here consider. What I call attraction may be performed by impulse, or by some other means unknown to me. I use that Word here to signify only in general any Force by which Bodies tend towards one another, whatsoever be the Cause.
Page iii - A MANUAL of CHEMISTRY; containing the principal Facts of the Science, arranged in the order in which they are discussed and illustrated in the Lectures at the Royal Institution.
Page 307 - ... the mass of the metal. • The power of a metallic or other tissue to prevent explosion, will depend upon the heat required to produce the combustion as compared with that acquired by the tissue; and the flame of the most inflammable substances, and of those that produce most heat in combustion, will pass through a metallic tissue that will interrupt the flame of less inflammable substances, or those that produce little heat in combustion. Or the tissue being the same, and impermeable to...
Page 26 - Whenever he wished to break an acquaintance, or felt himself offended, he resented the supposed injury by sending a present to the offender, and never seeing him afterwards. These presents were sometimes of a curious description, and consisted usually of some expensive chemical product or preparation. He had an heroic remedy for illness: when he felt himself seriously indisposed he took a place in the Edinburgh mail, and having reached that city, immediately came back in the returning coach to London....