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/iualyfis of the /,ir. 309 



Ox gall, and fpittlc, and urine; Oyftcr- (hell 

 and Milk generated a little air, but Limon 

 juice and Milk did at the fame time abforb a 

 little : Thus we fee that the variety of mix- 

 tures in the tlomacli appear fomctimes to 

 generate, and fomctimes to abforb air ; that 

 is, there is fomctimes more generated than 

 abforbed, and fomctimes an equal quantity, 

 and fomctimes lets according to the propor- 

 tion the generating power of the diiTolving 

 aliments bears to the abforbing power of the 

 fumes which arifc from them. In a true kindly 

 digeftion, the generating power exceeds the 

 abforbing power but a little : But whenever 

 the digeftion deviates in fome degree from 

 this natural ftatc, to generate a greater pro- 

 portion of elaftick air, then are we trou- 

 bled more or lefs with diftending Flatus's 

 I had intended to make thefe and many more 

 Experiments relating to the nature of digef- 

 tion in a warmth equal to that of the flomach, 

 but have been hitherto prevented by putftu 

 ing other Experiments. 



Thus we fee that all thefe mixtures do 

 in fermentation generate elaftick air, but 

 thofe which emit thick fumes, charged with 

 Allphur, rcforb more than was generated 



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