An examination of Dr. Crawford's theory of heat and combustion / by William Morgan.
- William Morgan
- Date:
- 1781
Licence: Public Domain Mark
Credit: An examination of Dr. Crawford's theory of heat and combustion / by William Morgan. Source: Wellcome Collection.
Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.
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![[ <4 ] f< pMogifton is fe^arated from the oil and com- ** bined with the acid : The latter is forced to “ give out a portion of its abfolute heat, part of “ which is abforbed by the bafis of the oil and the reft becomes redundant or is con- “ verted into fenfible heat. If the fenfible “ heat be increafed to a certain degree the phlo- “ gifton will fuddenly combine with the air, in confequence of which a great quantity of “ fire will be extricated, and the whole will “ explode with intenfe heat.”—Had Dr. C. fcnown that the mixture is capable of being in- flamed with immenfe violenre in vacuo, * he would probably have fpared himfdf the trouble of this laboured explanation. A third phenomenon which is fuppofed to admit of a l'olution by Dr. C.’s theory is the *- heat imparted to the air by the elefttic fpark. Here it is obferved that finceDr. Prieltley has “ proved the ele&ric fluid to be capable of cc communicating phlogifton to atmofpherical “ air and of converting it into fixed and phlo- e' gifticated air, it muft follow that the heat * See Pr. glare’s chemical Experiments in the 3d vol. qf the Philofophical Tranfa&ions, abridged by Lowthorpe, page 364. “ which](https://iiif.wellcomecollection.org/image/b21513958_0070.jp2/full/800%2C/0/default.jpg)
