; 14. ] 
50,1 placed over-night in a room 
about an equal quantity of branches 
of a lime-tree, walnut-tree, a vine, 
an. oak, and a willow, each in a 
different jar holding a gallon, with- 
out water, putting only fome water 
in the plate upon which the Jars 
were inverted, to keep the branches 
alive; the jars were left without 
being covered, and examined be- 
tween eight and nine in the morn- 
ing; the air of all was tried by 
putting one meafure of it with 
one of nitrous air immediately 
one after another, in the glafs 
tube. 
Ti he air of the uc tres occus 
pied = = =~ =. 124 
; the air of the walnut-tree 1.25 
vine 1.39 
a onk 1.26 
———__—_— willow 1.23 
3% After 
