Metabolism Experiment No. 59. 



53 



Carbon dioxide thermal quotient. The ratio between the carbon dioxide 

 eliminated and the heat produced is also of value in interpreting the nature 

 of the metabolism. This ratio, which is expressed in terms of the number of 



Table 20. Oxygen and carbon dioxide thermal quotients, and respiratory quotients 



Metabolism experiment No. 59. 



Date and period. 



1903. 

 Dec. 18: 



Preliminary: 

 1 a.m. to 4 a.m. 

 4 a.m. 7 a.m. 



Dec. 1S-19: 

 7 a.m. to 10 a.m. 

 1 p.m. 



10 a.m. 



1 p.m. 



4 p.m. 



7 p.m. 

 10p.m. 



1 a.m. 



4 a.m. 



Total. 



4 p.m. 

 7 p.m. 

 10 p.m. 

 1 a.m. 

 4 a.m. 

 7 a.m. 



Dec. 19-20: 

 7 a.m. to 10 a.m. 



10 a.m. 



1 p.m. 



4 p.m. 



7 p.m. 

 10 p.m. 



1 a.m. 



4 a.m. 



Total 



Dec. 20-21: 

 7 a.m. to 10 a.m. 



1 p.m. 

 4 p.m. 

 7 p.m. 

 10 p.m. 

 1 a.m. 

 4 a.m. 

 7 a.m. 



10 a.m. 



1 p.m. 



4 p.m. 



7 p.m. 

 10 p.m. 



1 a.m. 



4 a.m. 



Total. 



1 p.m. 

 4 p.m. 

 7 p.m. 

 10 p.m. 

 1 a.m. 

 4 a.m. 

 7 a.m. 



(a) 



Total 

 heat 

 produc- 

 tion. 



(6) 



Oxygen 



con- 

 sumed. 



Cals. 



333.3 

 275.6 

 271.5 

 301.0 

 258.7 

 214.7 

 191.4 

 234.2 



2080.4 



299.7 

 284.3 

 263.2 

 283.1 

 ! 272.9 

 222.1 

 239.5 

 237.1 



2101.9 



Grams. 

 58.9 

 70.4 



(e) 



Carbon 

 dioxide 

 thermal 

 quotient 

 (100 d+a). 



95 

 79 



74.6 

 96.6 

 85.6 

 69.2 

 63.4 

 65.0 



629.4 



(70 



Respi- 

 ratory 

 quo- 

 tient 



28.6 

 28.9 



27.5 

 32.1 

 33.1 

 32.2 

 33.1 

 27.8 



30.3 



101.8 

 88.8 

 88.3 

 98.6 

 81.7 

 74.1 

 65.3 

 72.0 



670.6 



30.5 

 32.2 

 32.5 

 32.8 

 31.6 

 34.5 

 34.1 

 30.7 



51.8 

 45.2 

 45.0 

 50.2 

 41.6 

 37.7 

 33.2 

 36.7 



32.2 



341.4 



66.7 

 55.8 

 52.3 

 67.6 

 59.9 

 48.5 

 44.3 

 45.5 



440.6 



30.3 

 31.1 

 31.4 

 31.6 

 30.7 

 32.1 

 33.0 

 30.7 



31.3 



48.4 

 43.8 

 42.4 

 45.0 

 46.2 

 36.7 

 33.5 

 39.5 



335.5 



71.8 

 50.8 

 54.4 

 56.1 

 62.7 

 47.8 

 44.8 

 52.1 



440.5 



32.0 

 29.4 

 32.6 

 29.7 

 31.7 

 33.4 

 30.6 

 28.3 



48.8 

 42.5 

 43.7 

 42.9 

 44.0 

 37.7 

 37.3 

 34.2 



68.6 

 57.9 

 67.2 

 55.9 

 59.2 

 50.0 

 54.3 

 39.2 



30.9 



331.1 , 452.3 



0.86 



.82 



.78 

 .81 

 .86 

 .74 

 .69 

 .78 

 .75 

 .81 



.78 



.67 

 .86 

 .78 

 .80 

 .74 

 .77 

 .75 

 .76 



.76 



.71 

 .73 

 .65 

 .77 

 .74 

 .76 

 .69 

 .S7 



73 



grams of carbon dioxide accompanying the production of 100 calories of heat, 

 has been given in column e. A particular discussion of this, as well as other 

 quotients, will be found beyond. 



Respiratory quotient. The relationship first recognized and studied was 

 that existing between the carbon dioxide eliminated and the oxygen consumed 



