278 On the Absorption qf Gases 



14-. If any gas not containing e/ither azotic 

 or oxygenous gas, be agitated over water con- 

 taining atmospheric air, the residuum will be 

 found to contain both azotic and oxygenous 

 gas. 



15. Let a quantity of water contain equal 

 portions of any two or more unequally absorb- 

 able gases; For instance, azotic gas, oxy- 

 genous gas and carbonic acid gas ^ then, let 

 the water be boiled. , or subjected to the air- 

 pumpj and it will be found that unequal por- 

 tions of the gases will be expelled. The azotic 

 will be the greatest'paft, the oxygenous next, 

 and the carbonic acid will be the least. — For, 

 the previous impregnation being such as is 

 due to atmospheres of the following relative 

 forces nearly ; 



Azotic — — 21 inch, of mercury 

 Oxygenous — 9- — : 



Carbonic acid -f 



consequently, when those forces are removed, 

 the resiliency of the azotic gas will be the 

 greatest, and that of the carbonic acid the 

 least ; the last will even be so small as not ta 

 overcome the cohesion of the water without 

 violent agitation. 



