Proceedings of the American Academy of Arts and Sciences. 

 Vol. XXXVIII. No. 14. — December, 1902. 



CONTRIBUTIONS FROM THE CHEMICAL LABORATORY 

 OF HARVARD COLLEGE. 



AN APPARATUS FOR THE MEASUREMENT OF THE 



EXPANSION OF GASES BY HEAT UNDER 



CONSTANT PRESSURE. 



By Theodore William Richards and Kenneth Lamartine Mark. 



Investigations on Light and Heat, made and published wholly or in part with Appropriations 



FROM tub Rumford Fund. 



