248 Analyfts of the Air. 
From this property in the vapours, arifing 
from animal bodies, to rebate and deftroy 
part of the elafticity of the air, a probable 
account may be given, of what becomes of 
a redundant quantity of air, .which may at 
any time have gotten into the cavity of the 
Thorax 3 either by a wound,or by fomc defeft 
in the fubftance of the lungs, or by very 
violent exercife. Which if it was to con- 
tinue always in that expanded ftate, would * 
very much incommode refpiration, by hin- 
dering the dilatation of the lungs in infpira- 
tion. But if the vapours, which do con- 
tinually arife in the cavity of the ThoraXy 
deftroy fome part of the elafticity of the air, 
then there will be room for the lungs to c 
heave : And probably, it is in the fame man- 
ner, that the winds arc reforbed, which in 
their elaftick ftate fly from one part of the : 
body or limbs to another, caufing by their : 
diftention of the velTels much pain. j 
Experiment CXII. j 
I 
I have by the following Experiment found, j 
that the air will pafs here and there thro* the i 
fubftance of the lungs, with a very fmall I 
force, vizn I cut i 
