go H(Bfnajlattcs. 
cht£ in the Fit of the Afthma. This De- 
fluxion of Serum, he fays, evidently appears 
in loofe Stools, Fluxes of Urine, great Spit- 
ing, Drowfinefs of the Head, in the begin- 
ing of the Afthma Fit. 
Experiment XIIL 
I. \T7E in Experiment with tow 
VV much greater Rapidity the BJood 
pafTes thro* the Lungs, than thro* any other ca- 
pillary Veffels of the Body ; whence we may 
with good reafon conclude, that it principally 
acquires its warmth, by the brisk .Agitation it 
there undergoes : This we find by daily Ex- 
perience, that an accelerated Motion of the 
Blood by Labour or Exercife, does conftantly 
increafe its Heat 5 whence we may well infer, 
that it acquires its Warmth chiefly in the Lungs, 
where it moves with much greater Rapidity^ 
than in any other capillary Vcifcls of the Body, 
And that the heat of the Blood arifes princi- 
pally from this Friftion, is hence alfo pro- 
bable, that on ftrong or brisk Motion of the 
Body, its Heat increafes much fafter, than ic 
could by any effervefeent or fermentative Mo- 
tion. And e contra^ on a CclTation of the 
Blood's 
