Proceedings of the Royal Society of London, Volume 10Taylor & Francis, 1860 |
Contents
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Common terms and phrases
Abstract acetic acrolein action alcohol aldehyde alloys ammonia animal apparatus appears battery body boiling-point bromide bronchial arteries bronchial tubes C₂ carbonic carbonic acid chemical chloride chorda colour communication compound containing contraction copper corresponding crystalline crystals curve deflections determined diatomic direction discharge distance distilled effect electric electrometer electromotive force equation ether ethylene experiments fact fibres force formula galvanometer glass gutta percha H₁ H₂ heat hydriodic acid hydrochloric acid hydrogen inches investigation iodide layer light liquid liver magnetic means mercury metal molecules muscles N₂ nerve nitric acid nitrogen observations obtained oxide paper pass phenomena phosphate platinum polariscope portion positive potash potassa produced Professor pure quantity rays regelation remarkable Royal Society salt scalar separate soluble solution specimens spectrum substance sugar sulphuric surface temperature theory tion triethylphosphine vapour variation vessels whilst yellow zinc
Popular passages
Page 167 - I take to do this, is not yet very usual ; for instead of using only comparative and superlative Words, and intellectual Arguments, I have taken the Course (as a Specimen of the Political Arithmetick I have long aimed at) to express myself in Terms of Number, Weight, or Measure ; to use only Arguments of Sense, and to consider only such Causes, as have visible Foundations in Nature...
Page 120 - Iodhydrine of glycol is soluble in water and alcohol, but insoluble in ether. It has no taste at first ; after a time, however, it almost burns the tongue, it is so pungent. It is decomposed by heat into iodide of ethylene, and probably glycol. It acts with great energy on the salts of silver. Action of Hydriodic and Acetic Acids on Glycol. — Formation of lodacetine of Glycol. A stream of hydriodic acid...
Page 54 - Average thickness. 1. A mass of brown sandy clay, with angular fragments of flints and chalk rubble. No organic remains. Base very irregular and indented into bed No. 2 2 to 12 ft. 2. A light-coloured sandy clay (" sable gras " of the workmen), analogous to the loess, containing land shells, Pupa, Helix, Claiutilia of recent species.
Page 283 - ... lime, as of so many other urinary deposits. Characters of Urine depositing Crystallized Phosphate of Lime. — The urine from which phosphate of lime is deposited is usually pale, but occasionally it is high-coloured ; the quantity passed is large, and the calls to void it frequent, more or less uneasiness and smarting being occasioned by its passage, at the neck of the bladder, and along the course of the urethra ; its specific gravity varies greatly. Taking the whole quantity passed in twenty-four...
Page 163 - Imagination — of that wondrous faculty, which, left to ramble uncontrolled, leads us astray into a wilderness of perplexities and errors, a land of mists and shadows; but which, properly controlled by experience and reflection, becomes the noblest attribute of man ; the source of poetic genius, the instrument of discovery in Science, without the aid of which Newton would never have invented fluxions, nor Davy have decomposed the earths and alkalies, nor would Columbus have found another continent.
Page 50 - ... or, after the period of his residence, the stalagmitic floor may have been broken up by natural causes, and the remains above and below it may have thus become mixed together, and afterwards sealed up by a second floor of stalagmite. Such instances of an imbedded broken stalagmitic floor are in fact known to occur ; at the same time the author does not pretend to say that this will explain all cases of intermixture in caves, but that it lessens the value of the evidence from such sources. The...
Page 157 - ... their corresponding surfaces ground tolerably flat, were suspended in an inhabited room upon a horizontal glass rod passing through two holes in the plates of ice, so that the plane of the plates was vertical. Contact of the even surfaces was obtained by means of two very weak pieces of watch-spring. In an hour and a half the cohesion was so complete, that, when violently broken in pieces, many portions of the plates (which had each a surface of twenty or more square inches) continued united.
Page 555 - Seeing the evidence afforded of the non-assimilation of free nitrogen by plants, it is very desirable that the several actual or possible sources whence they may derive combined nitrogen should be more fully investigated, both qualitatively and quantitatively. If it be established that plants do not assimilate free or uncombined nitrogen, the source of the large amount of combined nitrogen known to exist on the surface of the globe, and in the atmosphere, still awaits a satisfactory explanation....
Page 163 - Lastly, physical investigation, more than anything besides, helps to teach us the actual value and right use of the Imagination — of that wondrous faculty, which, left to ramble uncontrolled, leads us astray into a wilderness of perplexities and errors, a land of mists and shadows; but which, properly controlled by experience and reflection, becomes the noblest attribute of man...
Page 52 - ... from M. Pinsard of Amiens, to whose cooperation he expresses himself much indebted, to inform him that one had been discovered the following day, and was left in situ for his inspection. On returning to the spot, this time with his friend Mr. Evans, he satisfied himself that it was truly in situ, 17 feet from the surface, in undisturbed ground, and he had a photographic sketch of the section taken. Dr. Rigollot also mentions the occurrence in the gravel of round pieces of hard chalk, pierced...