2oo Analyjis of the Air. 



Oyflerfkell and Milk generated a little ain 

 But Limon juice and Milk did at the fame 

 time abforb a little aix 5 as did alfo Calves 

 Rennet and Vinegar 5 fome of the fame Rennet 

 alone generated a little air, and reforbed it 

 again the following day. It had the fame 

 effect when mixed with crums of bread. 



Experiment LXXXIV. 



A cubick inch of Limon juice, and neat 

 an equal quantity of/pirils of Harts-horn, 

 per fe> i. e. not made with Lime, did in 4. 

 hours abforb 3 or 4 cubick inches of air 5 

 and the following day it remitted or ge- 

 nerated two cubick inches of air : The third 

 day turning from very warm to cold, it a- 

 gain reforbed that air, and continued in an 

 abforbing ftate for a day or two. 



That there is great plenty of air incor? 

 porated into the fubftance of Vegetables, 

 which by the action of fermentation is rouzed 

 into an eiaftick ftate, is evident by thefe fol- 

 lowing Experiments, viz. 



Experiment LXXXV. 



March the 2d, I poured into the bolt- 

 head b (Fig. 34.) forty two cubick inches 



of 



