Chemical News and Journal of Industrial Science, Volumes 9-10

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Chemical news office., 1864
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Page 3 - MDFRSKCTS president, in the chair. The minutes of the preceding meeting having been read and confirmed, the various donations received since were announced by Mr. H. Gibbs, secretary. Among them were, "The Transactions of the Royal Academy of Lyons," presented by that body ; several medical theses, by graduates of the University of Edinburgh, presented by Dr.
Page 248 - I claim as my invention, and desire to secure by letters patent, is the obtaining of paraffine oil, or an oil containing paraffine, and paraffine, from bituminous coals, by treating ihem in manner hereinbefore described.
Page 219 - ... somewhat different in the two cases. Time would not permit of more than a very brief reference to the second property to 'which the speaker had referred as useful in tracing substances in impure solutions —that of fluorescence. The phenomenon of fluorescence consists in this, that certain substances, when placed in rays of one refrangibility, emit during the time of exposure compound light of lower refrangibility. When a pure fluorescent substance (as distinguished from a mixture) is examined...
Page 30 - The Ghost! as Produced in the Spectre Drama; popularly Illustrating the Marvellous Optical Illusions obtained by the Apparatus called the Dircksian Phantasmagoria : being a full Account of its Jfistory, Construction, and Various Applications.
Page 149 - If the arc be taken between platinum points in dry oxygen-gas over mercury, the gas diminishes indefinitely, until the mercury rises, and by reaching the point where the arc takes place, puts an end to (the experiment. I have caused as much as a cubic inch of oxygen to disappear by this means. I at one time thought this was due to the oxidation of the platinum ; but the high heat renders this improbable, and the deposit formed on the interior of the glass tube in which the experiment is made has...
Page 5 - Ib. of iron in 15 minutes. It need scarcely be added that small quantities of gold, silver, copper, brass, German silver, &c., can be melted with great ease, and that all the chemical processes that are commonly effected in platinum and porcelain crucibles can be promptly accomplished in the smallest cylinder of this furnace ; and, in the case of platinum vessels, with this special advantage, that the oil-gas is free from those sulphurous compounds, the presence of which in coal-gas frequently causes...
Page 12 - ... carbonic acid, and is thus restored to active service in the organisms of plants and lower animals, through which it passes, to complete the mighty cycle of its movements into the blood and tissues of the human frame. While circulating thus, age after age, through the three kingdoms of nature, phosphorus is never for a moment free. It is throughout retained in combination with oxygen, and with the earthy or alkaline metals for which its attraction is intense.
Page 15 - New Experiments Physico-mechanical, touching the spring of the air, and its effects ; (made for the most part in a new pneumatical engine) written .... by the honourable Robert Boyle, Esq* experiment xxxvi.
Page 148 - ... air and boils in the ordinary way. In my experiments on the decomposition of water by heat, I found that with the oxy-hydrogen gas given off from ignited platinum plunged into water, there was always a greater or less quantity of nitrogen mixed ; this I could never entirely get rid of, and I was thus led into a more careful examination of the phenomenon of boiling water, and set before myself this problem — what will be the effect of heat on water perfectly deprived of air or gas ? Two copper...
Page 219 - ... would not alone account for the fluorescence of the solution of the bark. When a substance possesses well-marked optical properties, it is in general nearly as easy to follow it in a mixture as in a pure solution. But if the problem which the observer proposes to himself be — Given a solution of unknown substances which presents well-marked characters with reference to different parts of the spectrum, to determine what portion of these characters belongs to one substance and what portion to...

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