oro 



On the Absorption of Gases 



as exhibited in the following table : — It must 

 be understood that the quantity of gas is to be 

 measured M the presstife and temperature 

 with whidi the impregnation is effected. 



3. The gas thus absorbed may be recovered 

 from the water the same in quantity and qua- 



* According to Mr. William Henry's experhnents, water 

 dees not imbibe qidite its bulk of nitrous oxide ; in one or 

 two instances with me it has come very near it : The ap- 

 parent deviation of tbig gas, may be owing to the difficulty 

 of ascertaining the exact degree of its impurity, 



f About -j'-jy of nitrous gas is usually absorbed ; and /^ h 

 rftcovepable : This diiftrence is owing to the residuum of 

 o:^ygen in the water, each measure of which takes 3|. of 

 nilsrous gas to saturate it, when in water. Perhaps it may 

 be found that nitrous gas usually contains rt small portion of 

 nitrtmsaxdde. 



