308 Analyfis of the Air. 



ment was not very fudden nor violent, nor 

 the quantity of abforbing fumes large, that 

 the Antimony and Aqua-fort is generated a 

 quantity of air equal to 520 times the bulk 

 of the Antimony 5 thus alfo in the mixture 

 of Aqua-regia and Antimony, in Experiment 

 9 1, while at firft the ferment was fmall, then 

 air was generated; but when with the increaf- 

 ing ferment plenty of fumes arofe, then there 

 was a change from a generating to an abforb- 

 ing ftate. 



Since we find fuch great quantities of 

 elaftick air generated in folution of animal 

 and vegetable fubftances; it muftneedsbe 

 that a good deal does confeantly arife, from 

 the diltolving of thefe aliments in the ftomach 

 and bowels, which diffolutfon it greatly pro- 

 motes : Some of which may very probably 

 be re-forbed again, by the fumes which arife 

 with them j for we fee in Experiment %i 

 that Oyfter fhell and Vinegar, Oyfter-fhell 

 and Rennet, Oyfter-fhell and Orange juice, 

 Rennet alone, Rennet and Bread, firft generat- 

 ed and then ab for bed air, but Oyfter-fhell with 

 fome of the liquor of a Calve's ftomach which 

 had fed much upon Hay 3 did not generate air 5 

 and it was the fame with Oyfter-fhell and 



Ox 



