Proceedings of the American Academy of Arts and Sciences. 

 Vol. XXXVIII. No. 5. — Octobkr, 1902. 



CONTRIBUTIONS FROM THE CHEMICAL LABORATORY 

 OF HARVARD COLLEGE. 



CONCERNING GAS~ANALTSIS BY MEASUREMENT 



IN CONSTANT VOLUME UNDER 



CHANGING PRESSURE. 



By Theodore W^illiam Richards. 



LIBRARY 



NEW VOR- 



GAKlil: 



