Proceedings of the American Academy of Arts and Sciences. 

 Vol. XLII. No. 24. — March, 1907. 



CONTRIBUTIONS FROM THE CHEMICAL LABORATORY OF 



HARVARD COLLEGE. 



CONCERNING POSITION ISOMERISM AND HEATS 



OF COMBUSTION. 



By Lawrence J. Henderson. 



Investigations on Liuht and Heat madb and published, vthoixt or in past, with Appeopbiation 



fbom the ruuvobo fund. 



