: ? 







6 



Analjfls of the Air. 



'^.ir; and this Air by fermentation, and 

 i( fomctimes without it, returns into denfc 

 " bodies." Of the truth of which we have 

 evident proof from many of the following 

 Experiments, viz,. 



That I might be well allured that no part 

 of the new Air which was produced in di- 

 filiation of bodies, arofc either from the 

 greatly heated Air in the retorts, or from 

 the fubftaucc of the heated retorts, I firft 

 gave a red hot heat both to an empty glafs 

 retort, and alfo to an iron retort made of a 

 musket barrel ,• when all was cold, I found 

 the Air took up no more room than be- 

 fore it was heated : whence I was allured, 

 that no Air arofe, either from the fubftance 

 of the retorts, or from the heated Air. 



As to animal fubftances, a very confide- 

 rable quantity of permanent Air was pro- 

 duced by diftillatiori, not only from the 

 blood and fat, but alfo from the mod: folid 

 parts of animals. 



Experiment XLIX. 



* 



A cubick inch of Hog's bloody diftilled to 

 vhy fcoria, produced thirty three cubick 



inches 











io 





mi 



link 

 1 



■ 



