43-21 



Proceedings of the American Academy of Arts and Sciences. 

 Vol. XLIII. No. 21. — June, 1908. 



CONTRIBUTIONS FROM THE CHEMICAL LABORATORY OF 

 HARVARD COLLEGE. 



CONCERNING THE USE OF ELECTRICAL HEATING 

 IN FRACTIONAL DISTILLATION. 



By Theodore W. Richards and J. Howard Mathews. 



Investigations on Lioht and Heat made and published, wholly or in part, with Appropriation 



from the rumford fund. 



