53 * 
At the end of three days only it began to grow, and this process went 
on favourably to the 2Q th. 
The water had now risen considerably in the jar, and the gas had suffered 
a diminution of one third. 
The barley being now withdrawn smelled completely maltish, and tasted 
sweet. 
The gas in the jar, upon examination, proved to be, 
1. Carbonic acid gad, or fixed air, 
2. Oxygen gad; 
in the proportion of sixty-four parts of the former to four of the latter. 
EXPERIMENT III. 
January 23 d, a quantity of barley, soaked in water for two days, was 
introduced into ajar containing only forty-six measures of pure oxygen gad. 
At the end of three days the barley began to grow, but soon after the 
vegetation ceased, and the column of air underwent no apparent diminution; 
when the air in the jar was examined, it was found to be, 
1. Carbonic acid air , 
2. Oxygen air ; 
of the last not one part even out of the forty-six remained, and the barley 
was only partly converted into malt, the quantity of oxygen gad being in¬ 
sufficient to influence the whole. 
EXPERIMENT IV. 
Another experiment with common air was made at the same time, and 
exactly under similar circumstances. 
In this case the barley did not begin to vegetate until the end of the 
* The indulgent reader will please to run his pen over an error of the press in the last page, which 
should have been 52 instead of 40; or, the sense will readily enough obviate any inconvenience from 
this accidental oversight. 
O 
