§4 Hcemaflatics. 
the ^.ungs will in this cafe be very white; 
for while the Air is drawn away from the Ve- 
ficles thro* the Bronchia^ the Air which is 
included in the Cavity of the Thorax^ being 
dilated comprefles the Lungs, and alfo the 
Blood out of its VelTels, on which account 
they are in this cafe found to be white. And 
that the Air in the ThoraXy thus comprefles 
the Lungs in VacuOy is evident hence, viz. 
If the Body of a Kitten, as foon as killed, be 
cut afunder, juft below the Diaphragm, and 
a Weight be then tyed to the Head, fo as 
to make that obtruncated Part fink under 
Water, if in this Pofition it be placed in Va- 
cuOy the Diaphragm will dilate confiderably 
and (ubfide again, as foon as Air is let into 
the Receiver, and it will be the fame if not 
immerfed in Water : A plain Proof, that there 
is Air in the Cavity of the T^horaXy which 
while it thus, by its Expanfion, dilates the 
Diaphragm, muft needs at the fame time conv 
prefs the Lungs, in which State they arc 
found on opening the thorax : Whereas, 
Lungs taken out of the Thorax do dilate in 
VacuOy and continue fo when Air is let into 
the Receiver, Another Reafon why the ill 
Elfefts of fuch Cizy Blood, do probably fall 
6 fooner 
