Analyfis of the Air. zj$ 



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 s 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 106 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 compreffing 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 constant- 

 ly roufed and quickned, whenever I increafed 

 the dilatations of the lungs, by compreffing 

 the bladder more vigoroufly $ and that whe- 

 ther it was at the beginning or end of each 

 I minutes, yet it was more eafiiy quickned, 

 4 when 



