BASAL METABOLISM. 



107 



As with the other subjects, the values for the oxygen consumption 

 are more regular than those for the carbon-dioxide production. (See 

 table 42.) The average for the values obtained in each period, as given 

 at the end of the table, show a striking constancy in the metabolism 

 throughout the day, the lowest average being 221 c.c. and the highest 

 227 c.c. On the other hand, the actual minimum and maximum values 

 obtained in the individual periods show a wide variation. In the 



TABLE 41. Carbon dioxide produced at different times of day in respiration experiments; 

 subject J. K. M., in post-absorptive condition and lying on couch. (Values per minute.) 

 Average age, 23 years. Average body-weight (naked), 60.4 kilograms. Height, 173 cm. 



experimental periods were usually 15 minutes in length and in all but one instance there was but one 

 period in the half hour. 



2 The total number of periods in which the carbon dioxide was determined in the 33 experiments was 166. 



