Analyfis of the Air. 299 



That great plenty of air is united with 

 fulphur in the oil of vegetables, is evident 

 from the quantity of air that arofe from the 

 diftillation of oils ofAnnifeeds and Olives, 

 in Experiment <5z. When by fermentation 

 the conftituent parts of a vegetable are fe- 

 parated, part of the air flies off in fermen- 

 tation into an elaftick ftate 5 part unites with 

 the effential Salt, Water, Oil and Earth, which 

 conftitute the Tartar which adhere to the 

 fides of the veffelj the remainder which 

 continues in the fermented liquor, is there, 

 fome of it, in a fix'd, and fome in an elaftick 

 date, which gives brisknefs to the liquor . 

 their expanding bubbles rifing of a very 

 vifible fize when the weight of the incum- 

 bent air is taken off the liquor in a vacuum. 



And as there was found a greater quantity 

 of air in the deer's horn, than in blood; 

 we may alfo obfcrve it to be in a much 

 greater proportion in the more folid parts of 

 vegetables, than in their fluid : For we find 

 in Experiment 53% 57. and <5o. that near 

 one third part of the fubftance of the Peafe, 

 heart of Oak and Tobacco, were by the ac- 

 tion of fire changed from an un-elaftick 

 ftate, to an elaftick air 1 And fince a much 



greater 



