ic 8 Analyfis of the Air. 

 €< ftrength and keeping at a diftance, fo as 

 u fometimes to take up above a million of 

 " times more fpace than they did before in 

 " the form of a denfe body , which vaft 

 u contraction and expanfion feems unintel- 

 tl ligible, by feigning the particles of Air 

 u to be fpringy and ramous, or rolled up 

 €i like hoops, or by any other means than 

 rt by a repulfive power. u The truth of 

 which is further confirmed by thefe Expe- 

 riments, which fhew the great quantity 

 of air emitted from fermenting bodies; 

 which not only proves the great force with 

 which the parts of thofe bodies muft be 

 diftendedj but (hews alfo how very much 

 the particles of air muft be coiled up in 

 that ftate, if they are, as has been fuppofed, 

 fpringy and ramous. 



To inftance in the cafe of the pounded 

 Apples which generated above 48 times 

 their bulk of Air 5 this air, when in the Ap- 

 ples, muft be comprefTed into lefs than a 

 forty eighth part of the fpace it takes up, 

 when freed from them, and it will con- 

 fequently be 48 times more denfe 5 and 

 finee the force of comprefled air is propor- 

 tional to its denfity, that force which com. 



preffes 



