76 



FOOD INGESTION AND ENERGY TRANSFORMATIONS. 



that of the Middletown calorimeter (approximately 5,000 liters), it 

 seems permissible to record the results only to the nearest gram. 



With at least three of our subjects, A. L. L., A. H. M., and H. R. D., 

 five or more basal values were obtained. (See tables 23, 24, and 25.) 

 With both A. L. L. and A. H. M., difficulty was experienced in finding 

 an average value, since with both subjects there appeared to be a dis- 

 tinct variation in the metabolism as measured at different times. For 

 example, with A. L. L., the basal values determined from February 7 

 to April 6, 1906, inclusive, were on an entirely different level from those 

 found a year later. This is shown not only in the carbon-dioxide 

 production, but also in the oxygen consumption and heat production. 



TABLE 



24. Basal metabolism of A. H. M. at different times of day in calorimeter experiments, 

 subject in sitting position. Middletown. (Values per 2 hours.) 



l The beginning of the" First two hours" was for this subject between 9 a. m. and 9 b 30 a.m. 



