of $eat am? Cottu n 



with the volatile fait 5 and this de- 

 fcent of the tinned liquor in the In- 

 ftrument being meafur'd, appeared to 

 be about an inch ( for it manifeftly 

 exceeded feven eighths. ) By com* 

 paring this Experiment with the firft 

 part of the foregoing,we may gather, 

 that when Volatile and Urinous Salts 

 or Spirits (for the faline particles 

 appear fometimes in a dry and fome- 

 times in a liquid form) tumultuate 

 upon their being mixt with Acids, 

 neither the Heat nor the Cold that 

 enfues is produc'd by a Conflid with 

 the Acids precifely as it is Acid, fince 

 we have feen that an urinous fpirit 

 produc'd an aftual Heat with fpirit of 

 Salt, andthediftill'd Salt of Sal Ar- 

 moniac,which is alfo Urinous^with the 

 acid fpirit of Roch-Allom produces 

 not a true effervefcence, but a mani- 

 feft Coldnefs : As the fame Salt alfo 

 did in a Trial of another fort^ which t 

 was this. 



EX- 



