ijz Analyfts of the Air. 
wards, oiit 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 t 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 5 fo that the 
claftick air, which I meafured in the recei- 
ver, was not all the air contained in the 
feveral diftilfd 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. 
Ex- 
