RICHARDS. — HEATS OF COMBUSTION OF ORGANIC SUBSTANCES. 575 



Figure 1. 

 Vertical Section. 



A. Outer vessel. 



B. Covering vessel. 



C. Nickel-plated cop- 



per can. 



D. Silver calorimeter. 



E. Stirrer for calorime- 



ter. 



r. Stirrer for covering 

 vessel. 



H. Stirrer for outer 

 vessel. 



I. 



J. 



Copper cover. 

 Burettes. 



K. Crucible containing 

 substance to be 

 burned. 



L. Thermometer. 



