244 Anahjfis of the Atr, 
whereby a continued fucceflion of frefli air 
may be abforbed by the blood. 
And in the analyfis of the blood, either 
by fire or fermentation inExper. 49 and 80, 
we find good plenty of particles ready to re- 
fume the claftick quality of air : But whe- 
ther any of thefe air particles enter the 
blood by the lungs, is not eafie to deter- 
mine 5 becaufe there is certainly great (lore 
of air in the food of animals, whether it be 
vegetable or animal food. Yet when we 
confider how much air continually lofes 
its elafticity in the lungs, which feem pur- 
pofely framed into innumerable minute me- 
anders, that they may thereby the better 
feize, and bind that volatile Hermes : It 
makes it very probable^ that thofe particles 
which are now changed from an elaftick re- 
pulfive, to a ftrongly attrafting ftate, may 
cafily be attracted thro* the thin partition of 
the veficles, by the fulphureous particles 
which abound in the blood. 
And nature feems to make ufe of the like 
artifices in vegetables, where we find that 
air is freely drawn in 5 not only with the 
principal fund of nourilhment at the root, 
but 
