[ 205 J 
Early.in the morning I found 
they all had yielded but: an incon- 
fiderable quantity of air. 
The air of the oak. leaves and 
walnuts .was the worft of all, it 
was not diminifhed by. nitrous air; 
that of the willow and the fage was 
near as poifonous ; that of the lime- 
tree was. not quite fo bad; that of 
the artichoke was fomewhat better; 
that of the potatoe-leaves was the 
leaft poifonous of all; however, in 
none of them a canbe would burn 
even fora moment. That of the 
qwater-pepper was fo poifonous, that 
it extinguifhed the flame, though 
diluted with five times as much 
common air; the apple-tree leaves 
had yielded fo little air that I could 
not put it to any teift. : 
38. Two handfuls of leaves of - 
French beans were put in a jar full 
“ Ok 
