98 



AZOTIC GAS. 



temperature in which the experiments were 

 made. The following table exhibits a view of 

 the results of these experiments. 



Before we can draw any consequence from 

 these experiments, we must determine by calcu- 

 lation the volume of the residues, supposing 

 them perfectly dry, and supposing the barome- 

 ter at 30 inches, and the thermometer at 60. 

 The following table shows what these volumes 

 are. 



The last column shows the residue of dry gas, 



9 



