Proceedings of the American Academy of Arts and Sciences. 

 Vol. XLIII. No. 7. — Octobek, 1907. 



CONTRIBUTIONS FROM THE RESEARCH LABORATORY OF PHYS- 

 ICAL CHEMISTRY OF THE MASSACHUSETTS INSTITUTE OF 

 TECHNOLOGY. — No. 17. 



LIBRARY 

 NEW YORK 

 BOTANIc 



GARDEN. 



OUTLINES OF A NEW 

 SYSTEM OF THERMODYNAMIC CHEMISTRY. 



By Gilbeiit Newtox Lewis. 



