Account of a series of experiments, shewing the effects of compression in modifying the action of heat. Read in the Royal Society of Edinburgh, June 3, 1805 / by Sir James Hall.

  • Hall, James, 1761-1832.
Date:
[1805]
Catalogue details

Licence: Public Domain Mark

Credit: Account of a series of experiments, shewing the effects of compression in modifying the action of heat. Read in the Royal Society of Edinburgh, June 3, 1805 / by Sir James Hall. Source: Wellcome Collection.

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    % •—Apparatus with Weight tidling directly on the barrel,—Comparifon of various refults, - - - 69 VIII. Formation of Coal.—Accidental occurrence which led me to undertake thefe Experiments.—Refults extracted from a former publication.— Explanation of fome difficulties that have been fuggejled.—The Fibres of Wood in fome cafes obliterated, and in fome preferved under com- preffion.—Refemblance which thefe Refults bear to a feries of Natu¬ ral Subflances defcribed by Mr Hatchett.—Thefe refults feem to throw light on the hi/lory of Surturbr and, - 79 IX. Application of the foregoing refults to Geology.—The fire employed in the Huttonian Theory is a modification of that of the Volcanoes.—- This modification mufi take place in a lava previous to its eruption.— An Internal Lava is capable of melting Limefione.—The efieffis of Volcanic Fire on fubfiances in a fubterranean andfubmarine fituation, are the fame as thofe afcribed to Fire in the Huttonian Theory.—Our Strata were once in a fimilar fituation, and then underwent the allion of fire.—All the conditions of the Huttonian Theory being thus combi¬ ned, the formation of all Rocks may be accounted for in a fatisfac¬ tor y manner.—Conclufion, - - 86 APPENDIX. No. I. Specific Gravity of fome of the foregoing Refults, - 1 No. II. Table, containing the Reduttion of the Forces, mentioned in Chap. VII. to a