aes: 
 fel€ or by the addition of refpira~ 
ble air, but extinguifhes flame. — 
Dephlogifticated- air is that pure, 
etherial, permanent, and elaftic fluid 
which the celebrated Dr.’ Prieftley 
found out the firft, and gave this 
very well adapted name to it. It is 
refpirable air, deftitute of thé phio- 
giftic or inflammable principle with 
which the beft atmofpheric air is 
found always to be more or lefs con- 
taminated. It is in reality com- 
mion air of BI higheft purity, fuch 
as Never 3 in the common ‘at- 
SGM e's even fo far fuperior 
in purity to common air, that an 
animal fhut up in a veffel, filled 
with ‘this air, protra¢ts its life four 
or five times, nay even in fome cafes 
feven times longer, than ‘if it was 
fhut up in a veffel filled with the 
Bett -atmofpheric | or common. airs 
Some 
~ 
