Analyfis of the Air. 1 6j 



inches of Air, which Air did not arife till 

 the white fumes arofe j which was plain to 

 be feen by the great defcent of the water at 

 that time, in the receiver a zy (Fig. 33.) 



Experiment L. 



Lefs than a cubick inch of Tallow, being 

 all diftilled over into the receiver a z> y 

 (Fig. 33.) produced 18 cubick inches of 

 Air. 



Experiment LI. 



241 Grains, or half a cubick inch of the 

 tip of a fallow Deer's horn, being diftilled 

 in the iron retort, made of a musket bar- 

 rel, which was heated at a fmith's forge, pro- 

 duced 117 cubick inches, that is, 234 times 

 its bulk of Ah}, which did not begin to 

 rife till the white fumes arofe $ but then 

 rulhed forth in great abundance, and in good 

 plenty, alfo with the foetid oil which came 

 laft. The remaining calx was two thirds 

 black, the reft am coloured j it weighed 128 

 grains, fo it was not half wafted, whence 

 there muft remain much fulphur in it 5 the 

 M 4 weight 



