[ i6 5 3 
The mean height of the thermometer, during the 
trial of the experiment, was 46°. Therefore fipirit of 
wine, at the heat of 46°, abforbs near 2 1 times its bulk 
of the more foluble part of this air. 
Experiment VII. 
After the fame manner it was tried how much fixed 
air is abforbed by oil. Some olive oil, equal in bulk 
to 4 part of the fixed air in the cylindrical glafs, was 
let up. It abforbed rather more than an equal bulk 
of air ; the thermometer being between 40 and 50. 
The experiment was not carried any farther. The oil 
was found to abforb the air very flowly. 
Experiment VIII. 
The fpecific gravity of fixed air was tried by means 
of a bladder, in the fame manner which was made 
ufe of for finding the fpecific gravity of inflammable 
air ; except that the air, inftead of being caught in an 
inverted bottle of water, and thence transferred into the 
bladder, was thrown into the bladder immediately 
from the bottle which contained the marble and fpirit 
of fait, by fattening a glafs tube to the wooden cap 
of the bladder, and luting that to the mouth of the 
bottle containing the eflfervefcing mixture, in fuch 
manner as to be air-tight. The bladder was kept on 
till it was quite full of fixed air : being then taken off 
and weighed, it was found to lofe 34 grains, by forcing 
out the air. The bladder was previoufly found to 
hold 100 ounce meafures. Whence if the outward 
air, at the time when this experiment was tried, is 
fuppofed to have been 800 times lighter than water, 
fixed air is 51 1 times lighter than water, or 14 ^ times 
heavier 
