(214.4 
of tracing the exiftence of a God 
in his wonderful works, and of ccn- 
templating him in adoration, may 
expect not to. be entirely annihi- 
lated after his body is returned into 
duft, out of which it took its ori- 
gins 
But to come back from this di- 
-greffion to the purpofe, let us con- 
fider. how much the _ real. facts 
drawn from nature itfelf are con- 
cordant with the theory cearcee 
from my experiments. IE: the leaves” 
of vegetables have really a “confi 
derable fhare in cleanfing the at- 
mofphere, it muft happen, that the 
time, when our common air is the 
pureft, is the fummer and the win- 
ter; for in the fummer the plants 
are in their greateft vigour; and 
in the middle of the winter the 
caufes of general corruption are the 
