Page:Proceedings of the Royal Society of London Vol 4.djvu/147

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The Right Honourable Lord Carrington, was balloted for, and duly elected into the Society.

A paper was read, entitled, Researches on the Chemical Equivalents of certain Bodies." By Richard Phillips, Esq., F.R.S.

The author examines, by a new series of experiments, the truth of the theory of Dr. Front and Dr. Thomson, namely, that " all atomic weights are simple multiples of that of hydrogen," a theory which the late Dr. Turner had maintained is at variance with the most exact analytic researches, and consequently untenable. Although the experiments of Dr. Turner, and the inferences which he drew from them, agree very nearly with those of Berzelius, it still ap- peared to the author desirable to investigate this subject ; and it occurred to him that the inquiry might be conducted in a mode not liable to some of the objections which might be urged against the processes usually employed.

Dr. Turner having adopted a whole number, namely "108, as the equivalent of silver, this substance was selected by the author as the basis of his inquiry into the equivalent numbers of chlorine, and some other elementary gases. It appeared to him that the chance of error arising from the fusing of the chloride of silver might be entirely removed, and other advantages gained, by experimenting on silver on a large scale, with such proportions of the substances em- ployed as were deemed to be equivalents ; and instead of calculating from the whole product of the fused chloride, to do it merely from the weight of such small portion only, as might arise from the difference between theoretical views and experimental results.

The author concludes, from the train of reasoning he appHes to the series of experiments so undertaken, that no material, and even scarcely any appreciable error can arise from considering the equiva- lent numbers of hydrogen, oxygen, azote, and chlorine, as being 1 , S, 14, and 36 respectively.

A paper was also read; entitled, " Some Account of the Hurricane of the 7th of Januaiy, 1839, as it was experienced in the neighbour- hood of Dumfries," in a letter addressed to P. M. Roget, ALD, Se- cretary to the Royal Societ}^. By P. Garden, Esq. Communicated by Dr. Roget.