Ese -j 
fruit, at leaft of fome, furpaffes the 
deleterious quality of flowers in the 
dark; but the influence of the fun 
feems to check, in fome degree, this 
hurtful quality in fome fruit more 
than in roots and flowers, of which 
the moft part preferve, even in the 
brighteit fun-fhine, their virulent 
effects upon the ambient air in its 
full force. I found, that one peach 
_ was able to render intirely poifonous, 
in a few hours, a body of air at leaft 
fix times greater than the fpace it 
occupied; and even that they could, 
in the middle of the fun-fhine, ren- 
der fuch a quantity of air fo un- 
wholefome, that a candle could not 
burn, nor an animal breathe in it. 
After I had obferyed, that all 
leaves of plants yield dephlogifti- 
cated air by day-light; and confider- 
ing, that in general all leaves are 
| green, 
