THE CALORIMETER SYSTEM AND MEASUREMENT OF HEAT. 109 



} 



10 



I 



FIG. a?. Vertical Cross-Section of Calorimeter Chamber through the end. The chamber consists 

 of four concentric shells, two inner ones of metal and two outer ones of wood. The air-spaces 

 and the wooden separators dividing the inner air-space (/,./, /,/,./,/), as well as the castors on 

 which the metal chamber rests, are also shown. 



