Now, tho* this Experiment was fo fre- 
quently difturbed, by being obliged to blow 
more air into the bladder twelve times du- 
ring the hour 5 yet fince he was almoft fuf- 
focated in lefs than two minutes, by breath- 
ing of himfelf to and fro the firft air in the 
bladder, he would by Experiment io 5 on 
Candles, have dyed in lefs than two minutes, 
when one fourth of the old air remained 
in the bladder, immediately to taint the 
new admitted air from a man's lungs; fo 
that his continuing to live thro* the whole 
hour, muft be owing to the forcible dilata- 
tion of the lungs, by comprelling the blad- 
der, and not to the vivifying Jpirit of air. 
For without that forcible dilatation, he had, 
after the firft 5 or 10 minutes, been certainly 
dead in lefs than a minute, when his pulfe was 
fo very low and weak, which I did not 
find to be revived barely by blowing 3 
parts in 4 of new air from the lungs of a 
man into the bladder : But it was conftant- 
ly roufed and quickned, whenever I increafed 
the dilatations of the lungs, by comprefling 
the bladder more vigorouQy ; and that whe- 
ther it was at the beginning or end of each 
5 minutes, yet it was more eafily quickned, 
4 when 
