[ S3 1 



But as this dephlogifticated air is 

 not produced immediately from the 

 pump water, but only when this 

 green matter is formed, it is clear, 

 that the air obtained from the leaves, 

 as foon as they are put in the water, 

 is by no means air from the water, 

 but air continuing to be produced 

 by a fpecial operation carried on in a 

 living leaf expofed to the day-light, 

 and forming bubbles, becaufe the 

 furrounding water prevents this air 

 from being diffufed through the at- 

 mofphere. 



It is true, that pump water, placed 

 in the fun-fhine, will foon yield 

 fome finall air bubbles, fettling at 

 the bottom of the jar, and every 

 where at the fides; but this air is 

 very far from being the fame as that 

 contained in the air bubbles of the 

 leaves. 



C 4 I placed^ 



