





HP 



io8 Analyfis of the Air. 



" ftrength and keeping at a diftancc, fo aS 

 « fometimes to take up above a million of 

 " times mote fpace than they did before in JLh< 

 " the form of a denfe body , which vaft 

 " contraction and expanfion feems unintel- ( 

 " ligible, by feigning the particles of Air 

 tc to be fpringy and ramous, or rolled up 

 " like hoops, or by any other means than 

 * by a rcpulfive power." The truth of °° 

 which is further confirmed by thefe Expe- 

 riments, which (hew the great quantity fl*^ 

 of air emitted from fermenting bodies i 

 which not only proves the great force with 

 which the parts of thofe bodies muft be 

 diftended; but mews alfo how very muca ill 

 the particles of air muft be coiled up hi 

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

 fpringy and ramous. 



To inftance in the cafe of the pounded j^** 

 Apples which generated above 48 times 





■:rr. 





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

 ples, muft be compreflcd 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 j and 

 fmce the force of comprcfled air is propor- 

 tional to its denfity, that force which com- 



prcfles 



k« 







