14 8 [Vegetable Staiich. 



the tranfparent ftems of leaves : And if our 

 eyes, afiifted with microfcopes, could come 

 at this defirable fight , I make no doubt, 

 but that we mould fee the fap, which was 

 progreffive in the heat of the day, would on 

 the coming on of the cool evenine, and the 



i o> 



falling dew be retrograde in the fame veffels. 



-D 



CHAP. V. 



Experiments, whereby to prove, that a con 

 (iderable quantity of air is infpred by 

 <Pla?2ts. 



T is well known that air is a fine cla- 

 ftick fluid, with particles of very diffe- 

 rent natures floating in it, whereby it is ad- 

 mirably fitted by the great author of nature, 

 to be the breath of life, of vegetables, as 

 well as of animals, without which they can 

 no more live, nor thrive than animals can. 



In the Experiments on Vines, chapter III. 

 we faw the very great quantity of air, which 

 was continually afcending from the Vines, 

 thro* the fap in the tubes 5 which manifeftly 

 fhews what plenty of it is taken in by vegeta- 

 bles, and is perfpired off with the fap thro' 

 the leaves, 



E X P E- 



