Proceedings of the American Academy of Arts and Sciences. 

 , Vol. XLII. ISTo. 21. — March, 1907. 



CONTRIBUTIONS FROM THE CHEMICAL LABORATORY 

 OF HARVARD COLLEGE. 



CONCERNING THE ADIABATIC DETERMINATION OF 

 THE HEATS OF COMBUSTION OF ORGANIC SUB- 

 STANCES, ESPECIALLY SUGAR AND BENZOL. 



By Theodore W. Kichards, Lawrence J. Henderson, and 



Harry L. Frevert. 



iNVESnOATIONS ON LlOHT AND HRAT MADE AND PtirXlSHED, WHOLLY OB IN PABT, WITH APPBOPEIATION 



FBOM THB RUMPOBD FCND. 



