104 



FOOD INGESTION AND ENERGY TRANSFORMATIONS. 



of the experiments being made prior to June 6, 1911. Data for 8 

 half-hour periods, secured approximately between 8 a. m. and Il h 30 m 

 a. m., are available for comparison purposes. 



Considering first the table showing the carbon-dioxide production 

 (table 39), it is found that with this subject the average value for the 

 first period is extraordinarily high (224 c.c.), while the subsequent 



TABLE 39. Carbon dioxide produced at different times of day in respiration experiments; 



subject L. E. E., in post-absorptive condition and lying on couch. (Values per minute.) 



Average age, 31 years. Average body-weight (naked), 59.8 kilograms. Height, 176 cm. 



'The experimental periods were usually 15 minutes in length and in most instances there was but, one 

 period in the half hour. 



a The total number of periods in which the carbon -dixoide was determined in the 32 experiments was 148. 



