GASEOUS METABOLISM DURING REST. 



497 



The gaseous-metabolism measurements of both Squads A and B 

 in the large group respiration chamber are confined exclusively to the 

 carbon-dioxide production. To compute the heat output from these 

 values, it is necessary to assume a respiratory quotient. In the case 

 of Squad A the respiratory quotient on the basal night is very properly 

 assumed to be 0.81. This respiratory quotient was likewise used for 

 Squad B for the night experiments in the respiration chamber prior 

 to diet restriction. With both Squads A and B after the diet restric- 

 tion respiratory quotients other than the basal must be assumed. 

 These are usually obtained for Squad A from the measurements actually 

 made with the respiratory-valve apparatus on the days nearest to the 

 night in the group respiration chamber. The values must be assumed 

 to apply likewise for Squad B at a corresponding period of weight 

 reduction. 



The values obtained for the minimum metabolism during sleep, as 

 measured in the group respiration chamber prior to the period of re- 

 duced diet— t. e., the basal values— for both Squads A and B are given 

 in table 114, in which it can be seen that the values for Squad A are 



Table 114. — Minimum metabolism during sleep as measured in group respiration 

 chamber prior to period of reduced diet. 



confined to the measurements on one night only (September 29-30) 

 while for Squad B we have measurements for five nights. Although this 

 table gives the total body-weight without clothing, total body-surface 

 computed from the height-weight chart, and the total carbon-dioxide 

 per hour, for comparative purposes we must rely solely upon the values 

 given in the last two columns, namely, the heat per hour (computed) 

 on the two bases of per kilogram and per square meter. These present 

 several very interesting points. The average heat production per 

 hour for Squad A was 1.10 calories per kilogram and 40.8 calories per 

 square meter. From the normal values for the heat production per 

 square meter per 24 hours obtained with the respiratory-valve appa- 

 ratus and given in table 113, it can be computed that the average 



