Analyfis of the Air. 1 7 > 



the Air took up no more room than before it 

 was heated : whence I was afliired, that no 

 Air arofe, either from the fubftance of the re- 

 torts, or from the heated air. 



As to animal fubjlances, a very confiderable 

 quantity of permanent Air was produced by 

 diftillation, not only from the blood and fat, 

 but alio from the moft folid parts of animals. 



Experiment XLIX. 



A cubick inch of Hogs blood, diftilled to 

 dry fcoria, produced 33 cubick inches of Air, 

 which Air did noc arife till the white fumes 

 arofe ; which was plain to be ktn by the 

 great defcent of the water at that time, in the 

 receiver azy (Fig. 33.) 



Experiment L. 



Lefs than a cubick inch of 'Tallow, being all 

 diftilled over into the receiver az y % (Fig, 33O 

 produced 18 cubick inches of Air. 



Experiment LI. 



241 Grains, or half a cubick inch of the 

 tip of a fallow Deer's born, being diftilled in 



the 



