DISCUSSION OF RESULTS AND GENERAL CONCLUSIONS. 



109 



absorbed per kilogram of body-weight per minute. The paucity of experi- 

 mental data with regard to light cases prevents any general deduction, although 

 it is again obvious that there is on the average a much smaller oxygen con- 

 sumption per kilogram of body-weight than with the severe cases. Finally, it 

 should be noted that in the experiment with Case X, the value found with the 

 chair calorimeter (4.17 c.c.) is higher than that found with the respiration 

 apparatus (3.79 c.c.) and can be wholly explained by the difference in the mus- 

 cular activity incidental to experiments in the chair calorimeter. 



Table 123. Oxygen absorbed per kilogram of body-weight per minute by diabetics in experi- 



vients without food, 1910-1911. 



Subject. 



Severe diabetes. 



Case A 



H 



I 



K 



L 



N 



O. 

 P. 



Q. 

 R. 



S.. 

 T. 

 U. 

 V. 



Av. severe cases 



Moderately severe and 

 light diabetes. 



Case M . 

 W. 

 X. 



Av. moderately 

 severe and 

 light cases. . . . 



Chair calorimeter. 



Oxygen absorbed. 



4.80 4.08 3.62 



Aver- 

 age. 



Bed calorimeter. 



4.17 



4.17 



'At 6 h 45 nl a.m. the subject ate a light breakfast consisting of a 2-egg omelet and a cup of coffee. The experiment 

 began at 9 h 22 m a.m., the last period ending at ll h 10 ra - 



1 a.m. 



In table 124 are given the averages of the values found in both series of 

 experiments with the different subjects and with the different forms of experi- 

 mental apparatus, i. e., the bed calorimeter, chair calorimeter, and respiration 

 apparatus, these showing that 4.85 c.c. of oxygen were absorbed and measured 

 in the chair calorimeter, 4.66 c.c. with the bed calorimeter, and 4.41 c.c. with 

 the respiration apparatus. Admitting that the chair-calorimeter results are 

 affected somewhat by increased muscular activity incidental to experiments in 

 this apparatus, we may average the results found in the bed calorimeter and the 

 respiration apparatus and consider the average value of 4.54 c.c. per minute as 

 the best average value for severe diabetics lying quietly at rest without food. 

 The subjects with moderately severe and light diabetes have relatively less 

 oxygen consumption under the same conditions, although in this discussion 

 attention is particularly directed to the values found with the severe cases. 



