24 flDf t&e ^et^antcal ®mint 



fufe a Heat through the body, is 

 with fuccefs externally applied by 

 Phyficians and Chirurgeons in refri- 

 gerating Medicines, 



But I leave the further Inquiry in- 

 to the Operations of Medicines to 

 Phyficians who may poffibly, by 

 what has been faid, be affifted to 

 compofe the difference^between 

 fome famous Writers about the tem- 

 perament of fome Medicines, as Mer- 

 cury , Gamphire , &c. which fome 

 will have to be cold, and others 

 maintain to be hot j and fhall onely 

 offer by way of confirming, in gene- 

 ral, that Potential Coldnefs is onely 

 a Relative Quality, a few Particu- 

 lars, the firft whereof is afforded 

 by comparing together the VI. and 

 the VII. Experiment before* going, 

 (which have occafion'd this Digrei- 

 fion about Potential Coldnefs 5) fince 

 by them it feems probable, that the 

 fame thing may have it in reference 

 to one body , and not to another, 

 according to the difpofition of the 

 body it operates upon, or that ope- 

 rates 



