142 



Proceedings of the Royal Irish Academy. 



Gasometric Method. 



Volume used, 2-420 litres. 



Temperature of water, . , . 11°C. 











3.SE 













1) -(J r^ 







Volume. 



Tempera- 

 ture 



Pressure 























:3 c^ 

 "o i 

 U 



211-8 



" ° a 

 403-95 



Total vol. of Gas evolyed, . 



612-73 



8-4 



736-5 



Gas used, 



369-04 



S-4 



736-5 



211-8 



243-294 



After absorption of CO2, . 



240-16 



8-8 



729-5 



327-5 



123-063 



After admission of H, . . 



364-97 



8-8 



729-0 



187-5 



253-313 



After explosion, .... 



261-2 



8-7 



729-5 



296 



141-584 



Percentage Compositio7i. 



Carbonic acid, 49-418 



Oxygen, 15-308 



Nitrogen, 35-274 



Total, 100-000 



Absolute Volume Composition in Cul. Cents. 



Carbonic acid, 46-715 



Oxygen, 14-471 



Nitrogen, 33-343 



Total, 94-529 



Volume of oxygen by Volumetric method, 12-486 

 ,, ,, ,, Gasometric ,, , 14-471 



Difference, 1-985 



In tbis case the Volumetric method shows a less volume of oxygen. 

 than the Gasometric method. This, I think, is attributable to the 



