[ XXV ] 



had feyeral inftances of the ai£ 

 being undoubtedly meliorated by 

 this procefs, efpecjally by the 

 llioots of ftrawberries, and fome 

 other plants, which I could, by 

 bending, introduce into the jars 

 or phials of air fupported near 

 them in the garden, when the 

 roots continued in the earth.— 

 I had other inftances, no lefs un- 

 queftionable, of common air not 

 only receiving no injury, but even 

 confiderable advantage, from the 

 procefs, having been rendered in, 

 fome meafure dephlogifticated by 

 it, fo as to be much more dimi- 

 nifhed by nitrous air than before, 

 a thing which I was far from ex- 

 pecting.— In molt of the cafes in 

 which the plants failed to me- 

 <c liorate the air, they were either 

 f? manifefUy fickly, or at leafl did 



?? not 



