Analyfis of the Air. 



tS.t 



I fixed alfo in the fame manner young 

 tender fibrous roots, with the (mail end 

 upwards at n, and the veflel y y full of wa- 

 ter ; then upon pumping large drops of wa- 

 ter followed each other fail, and fell into 

 the ciftern x, which had no water in it. 



C H A P. VI. 



A fpecimen of an attempt to analyze the Air 

 by a great variety of chymio-ftatical Ex- 

 periments, which fhew in how great a pro- 

 portion Air is wrought into the compofi- 

 tion of animal, vegetable, and mineral 

 Subftances , and withal how readily it re- 

 fumes its former elaftick fate, when in the 

 dijfolution of thofe Subftances it is difin- 

 gaged from them. 



HAVING in the preceding chapter 

 produced many Experiments, to prove 

 that the Air is freely infpired by Vegetables, 

 not only at their roots, but alfo thro' fc- 

 veral parts of their trunks and branches, which 

 Air was moft vifibly feen afcending in great 

 plenty thro' the fap of the Vine, in tubes 

 which were affixed to them in the bleeding 

 feafon ; this put me upon making a more 

 3 parti- 





