[Mi] 
has received this name beécaufe 
common air, expofed to the calci- 
nation of metals, becomes phlogifti- 
cated air; which alteration feems to 
depend on thé phlogifton of the | 
metal being communicated to it, for 
the metal itfelf has Joft it in the 
Sabie anid: Moeie the ia 
phlogittic picks, stir to com | 
mon air this quality. ‘The air re- 
turning from our lungs is ‘faid to 
be phlogifticated more or lefs, be- 
caufe it is found to poffefs the fame 
bir as the air iy bored. to Big 
Lic frat on r16F | m et: nis. 
wae ; itis not, or not much, dimi- 
nithed by nitrous air; it is poifonous 
for an aninal - ‘who’ breathes in lit} 
itis - Rot indammable either by it- 
ead felf 
