Metabolism Experiment No. 71. 



115 



others, 28 the respiratory exchange is unaffected by a diminished percentage of 

 oxygen unless that percentage falls below 11. In none of the experiments thus 



Table 68. Record of water of respiration and perspiration- 

 No. 11. 



-Metabolism experiment 



1 Allowance has been made for water lost by the absorber, chair, bedding, and miscellaneous 

 articles as follows : Jan. 7-8, 24.45 grams ; Jan. 8-9, 53.45 grams ; Jan. 9-10, 31.78 grams ; 

 Jan. 10-11, 37.01 grams. 



far made has the percentage of oxygen remaining in the chamber approached 

 this latter point, and hence the atmosphere breathed by the subjects of these 

 experiments has not influenced the character or amount of the respiratory 

 exchange. 



S9 U. S. Dept. Agriculture, Office of Exp. Sta. Bui. 175. 



