l%i Analyfis of the Air. 



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 Bri/lol'Dia* 

 mond, and compound Aquafortis, and Water 

 abforbed 1 6 times their bulk of air. 



The like quantities without water ab- 

 forbed more flowly 7 times their bulk of 



air. 



Powdered Briflol 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 fomg 

 other Mineral waters. 



Experiment XCIX. 



When Aqua-regia was poured on Oleum 

 Tartari per <QeliquiuM much air was gene- 

 rated, and that probably chiefly from the 

 Oleum Tartari i 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 Tartaric and OL Tartari drop- 

 ped on boyling Tartar generated much air. 



When 



