Proceedings of the Literary and Philosophical Society of Manchester, Volumes 3-7

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Page 261 - DEAR SIR, I have the pleasure to acknowledge the receipt of your letters of the 8th of January, and their duplicates.
Page 46 - Ibs. of carbon ; a quantity which amounts to more than the weight of all the plants, and of all the strata of mineral and brown coal, which exist upon the earth. This carbon is, therefore, more than adequate to all the purposes for which it is required.
Page 4 - I another, till he had finished his chemical experiments, in the performance of which he was the most accurate, strict, exact. What his aim might be I was not able to penetrate into, but his pains, his diligence at these set times made me think he aimed at something beyond the reach of human art and industry.
Page 4 - Trinity) said that they might study seven years before they understood any thing of it. 11U carriage then was very meek, sedate, and humble, never seemingly angry, of profound thought, his countenance mild, pleasant, and comely. I cannot say I ever saw him laugh but once, which was at that passage which Dr.
Page 233 - They showed* that a burning surface of magnesium wire, which, seen from a point at the sea's level, has an apparent magnitude equal to that of the sun, effects on that point the same chemical action as the sun would do if shining from a cloudless sky at a height of 9° 53
Page 184 - Exp. 1013. — Daguerre's process — attempt to imitate. Requisites — 1st very susceptible paper — 2nd very perfect camera — 3rd means of arresting further action. Tried hyposulphite of soda to arrest the action of light by washing away all the chloride of silver or other silvering salt — succeeds perfectly. Papers half acted on, half guarded from...
Page 4 - So intent, so serious upon his studies, that he ate very sparingly, nay, ofttimes he has forgot to eat at all, so that, going into his chamber, I have found his mess untouched, of which, when I have reminded him, he would reply—'Have I?
Page 256 - That a ring of nebulous matter exists differing in density or constitution in different parts, or several masses of such matter forming a discontinuous ring, circulating round the sun in a plane nearly coincident with the plane of the ecliptic, and at a mean distance from the sun, of about £ of the radius of the earth's orbit.
Page 75 - ... formulae or probable internal constitution of these compounds I hardly venture to indulge in any speculations. They might be considered as conjugated compounds — compounds of which organic chemistry affords so many examples; and it might consequently be possible to obtain from them, by decomposition, some of the simpler bodies which are known to have entered into their composition. 1 have, however, been unable to discover any facts in favour of this view. Neither indigo-blue nor any of its...
Page 127 - By discussing from this point of view the hours of high water at full and change for the principal places of the globe...

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