is 1 3 



SECTION VIL 



Reflexions. 



IT might, perhaps, be objected^ 

 that the leaves of the plants are ne- 

 ver in a natural flate when fur- 

 rounded by pump water; and that 

 thus there may, perhaps, remain 

 fome degree of doubt, whether the 

 fame operation of the leaves in their 

 natural iituation takes place. 



I cannot confider the plants kept 

 thus underwater to be in a Iituation 

 fo contrary to their nature as to de- 

 range their ufual operation. Wa- 

 ter, even more than they want, is not 

 hurtful to plants, if it is not applied 

 too confiderable a time. The water 

 only cuts off the communication 

 with the external air ; and we know, 



that 



