Analy/is of the Air. 257 



which place an afliftant held his finger on 

 moft part of the time; but the languid pulfe 

 was quickly accelerated, fo as to beat fail -, 

 foon after I dilated the lungs much, by pref- 

 fing hard upon the bladder, efpecially when 

 the motion of the lungs was promoted by 

 pre fling alternately the Abdomen and the blad- 

 der, whereby both the contraction and dila- 

 tation of the lungs was increaled. 



And I could by this means roufe the lan- 

 guid pulfe whenever I pleafed, not only at 

 the end of every five minutes, when more air 

 was blown into the bladder from a man's 

 lungs, but alfo towards the end of the five 

 minutes, when the air was fulleft of fumes. 



At the end of the hour, I intended to try 

 whether I could by the fame means have kept 

 the Dog alive fome time longer, when the 

 bladder was filled with the fumes of burning 

 Brimjlone : But being obliged to ceafe for a 

 little time from prefling the air into his lungs, 

 while matters were preparing for this addi- 

 tional Experiment, in the mean time the Dog 

 died, which might otherwife have lived lon- 

 ger, if I had continued to force the air into 

 his lungs. 



Now, though this Experiment was fo fre- 

 quently difturbed, by being obliged to blow 



S more 



