C 60 ] 



green, and that that fubftance which 

 Dr. Priefiley difcovered to yield 

 jfp much dephlogifticated air is of 

 fhc lame colour; I had fome fufpi- 

 cion, that green fruits, fuch as beans, 

 would alfo yield dephlogifticated air. 

 I placed, for this purpofe, fome 

 French beans in a jar full of pump 

 water, and expofed it to a bright 

 fun- iliine during four hours, and 

 obtained a moderate quantity of air, 

 oozing out of their fubftance by 

 bubbles, in the fame manner as 

 out of leaves. This air was far 

 from being dephlogifticated air; for 

 it was even worfe than common air, 

 though it approached pretty near it 

 in ^oodnefs. 



I then wanted to fee what effect 



thefe green fruits would have upon 



a body of air in the dark; and I 



was not a little furprized to find, 



1 that 



