Proceedings of the American Academy of Arts and Sciences. 

 Vol. XLI. No. 1.— May, 1905. 



CONTRIBUTIONS FROM THE CHEMICAL LABORATORY OF 

 HARVARD COLLEGE. 



THE ELIMINATION OF THERMOMETRIC LAG AND 



ACCIDENTAL LOSS OF HEAT IN 



CALORIMETRT. 



By Theodore William Richards, Lawrence J. Henderson, 

 and George S. Forbes. 



1. TWO NEW METHODS OF AVOIDING ERROR IN CALORIM- 



ETRY t — By Theodore William Richards. 



2. THE CONSTANCY OF RESULTS OBTAINED BY ONE OF THE 



NEW METHODS. — By Theodore W. Richards and George S. 

 Forbes. 



3. THE COMPARISON OF THE TWO METHODS, AND THE EXACT 



ESTIMATION OF ADIABATIC RISE OF TEMPERATURE.— 

 By Theodore W. Richards and Lawrence J. Henderson. 



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

 from the rumford fond. 



