





fill'. 







II 



* 



221 Analyfis of the Air. ^ f 



A cubick inch of finely powdered Flint * ** 

 and an equal quantity of compound Aqua- •**' 

 fortis, abforbed in 5 or 6 days 12 cubick 

 inches of air. * 



Equal quantities of powdered Briftol T)ia- J 



mond, and compound Aquafortis, and /jfttf^r 

 abforbed 16 times their bulk of air. . 



The like quantities without water ab- 

 forbed more (lowly 7 times their bulk of ^|^ 



air. '^ |0 



Powdered Briftol Marble (viz. the fhell^ 



in which thofe 'Diamonds lay) covered 

 pretty deep with water, neither generated • 

 nor abforbed air ; and it is well known that^^ 

 Briftol water does not fparkle like fome ' J*^ 

 other Mineral waters. *Ar 



MM 



Experiment XCIX. 



When Aqua-regia was poured on Oleum 

 Tartari per c Deliquium much air was gene- 

 rated, and that probably chiefly from the 

 Oleum Tartari ; for by Exper. 74- Sal Tar- 

 tar has plenty of air in it. 



It was the fame when oil of Vitriol was 

 poured on 01. Tartari; and 01. Tartari drop- 

 ped on boy ling Tartar generated much air. 



When 





** 



1 



