494 Mr. J. Y. Buchanan on the Absorption of 



TABLE II. (continued.} 



TABLE III. 



Determinations of the absorption-coefficient of a 1-23 per cent, solution 

 of crystallized sulphate of magnesia for the temperatures and pres- 

 sures indicated, the duration of the reaction being taken into account. 

 V=47'650 c. c. 





