2 \ 6 Analyjis of the Ak. 



by Experiment 73 is found 10 be contained 

 in its Tartar, which adheres to the fides of 

 the veffel ; it would by this means be found 

 that air makes a very confiderable part of 

 the fubftance of Vegetables, as well as of 

 Animals. 



But though from what has been faid, it 

 is reafonable to think, that many of thefe 

 particles of air were in a fixed ftate, ftrongly 

 adhering to, and wrought into the fubftance 

 of Apples ; yet on the other hand it is mod 

 evident from Exper. 34. and 38, where in- 

 numerable bubbles of air inceflantly arofe 

 through the fap of Vines, that there is a con- 

 fiderable quantity of air in Vegetables, upon 

 the wing, and in a very active {late, efpeci- 

 ally in warm weather, which inlarges the 

 fphere of their activity. 



The Effefis of the Fermentation of mineral 

 Subjiances on the Air, 



I Have above (hewn that Air may be pro- 

 duced from mineral Subftances, by the 

 action of fire in diftillation. And we have, 

 in the following Experiments, many inftances 

 of the great plenty of air, which is generated 

 by fome fermenting mixtures, a b for bed by 



oth:rs, 



