Abstracts of the Papers Communicated to the Royal Society of London, Volume 5

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Richard Taylor, 1851
 

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Page 710 - MACVEY NAPIER was born in the year 1777, and descended from an ancient family in the West of Scotland. After successful studies in the two Universities of Glasgow and Edinburgh, he became a member of the Society of Writers to the Signet. His talents would probably have led him to great success in the legal profession, had not his taste for literary and philosophical pursuits led him to other avocations. He was, however, the object of so much respect and regard, that he was at an early age elected...
Page 595 - All matter appears to be subject to the magnetic force as universally as it is to the gravitating, the electric and the chemical or cohesive forces...
Page 902 - The low diffusibility of albumen is very remarkable, and the value of this property in retaining the serous fluids within the blood-vessels at once suggests itself. It was further observed, that common salt, sugar, and urea, added to the albumen under diffusion, diffused away from the latter as readily as from their aqueous solutions, leaving the albumen behind in the phial. Urea itself is as highly diffusible as chloride of sodium.
Page 902 - The proportion of salt which diffused out in such experiments amounted to about l-8th of the whole. Secondly, that the proportion of salt diffused increases with the temperature ; an elevation of 80° Fahr, doubling the quantity of chloride of sodium diffused in the same time. The diffusibility of a variety of substances was next compared, a solution of 20 parts of the substance in 100 water being always used. Some of the results were as follows, the quantities diffused being expressed in grains:...
Page 595 - ... the particle of magnetic matter would have its north and south poles opposite to, or facing the contrary poles of the inducing magnet ; whereas, with the diamagnetic particles, the reverse would obtain ; and hence there would result, in the one substance, approximation ; in the other, recession. On Ampere's theory, this view •would be equivalent to the supposition that, as currents are induced in iron and magnetics, parallel to those existing in the inducing magnet or battery wire, so, in bismuth...
Page 785 - ... author does not believe that this results from any attractive or repulsive force exerted on the bismuth, but only from the disturbance of the lines of force or resultants of magnetic action, by which they acquire, as it were, new forms...
Page 784 - ... its diamagnetic relations being in no way affected. If the crystal be broken up, or if it be fused and re-solidified, and the metal then subjected to the action of the magnet, the diamagnetic phenomena remain, but the magne-crystallic results disappear, because of the confused and opposing crystalline condition of the various parts. If an ingot of bismuth be broken up and fragmentary plates selected which are...
Page 904 - The corresponding salts of soda appeared to fall into a nitrate and sulphate group also, which have the same relation to each other as the potash salts. The relation of the salts of potash to those of soda, in times of equal diffusibility, appeared to be as the square root of 2 to the square root of 3 ; which gives the relation in density of their diffusion molecules, as 2 to 3.
Page 955 - ... but my object at present is only to point out their application to the use of the collier. " All that he requires to ensure security, are small wire cages to surround his candle or his lamp, which may be made for a few pence, and of which various modifications may be adopted, and the application of this discovery will not only preserve him from the fire-damp, but enable him to apply it to use, and to destroy it at the same time that gives him a useful light.
Page 924 - ... could never have been contained within the alveolus of a Belemnite ; the soft parts of the animal of the Belemnite are therefore wholly unknown. Many beautiful specimens of Belemnites and Belemnoteuthis were exhibited by Dr. Mantell to the Society, in proof of the statements contained in the memoir. 2. "On the PELOROSAURUS ; an undescribed gigantic terrestrial reptile, whose remains are associated with those of the Iguanodon and other Saurians, in the Strata of Tilgate Forest.

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