17 z Analyfis of the Air. 



wards, out of the containing veffel, into 



another inverted receiver full of water. 



Experiment LVIII. 



There was raifed from an ounce or 437 

 grains of Mufiard-feed 270 cubick inches 

 of air, or 77 grains, which is fomething 

 more than 7 part of the ounce weight. 

 There was doubtlefs much more air in the 

 feed; but it rofe in an unelaftick ftate, be- 

 ing not difentangled from the Oil, which was 

 in fuch plenty within the gun-barrel, that 

 when I heated the whole barrel red hot in 

 order to burn it out, it flamed vigoroufly 

 out at the mouth of the barrel. Oil alfo 

 adhered to the infide of the barrel, in the 

 diftillation of many of the other animal, ve- 

 getable and mineral fubftances ; fo that the 

 elaftick air, which I meafured in the recei- 

 ver, was not all the air contained in the 

 ieveral diftill'd fubftances 5 fome remaining 

 in the Oil, for there is unelaftick air in 

 Oil, part being alfo reforbed by the fuL- 

 phureous fumes in the receiver. 



E* 



