Metabolism Experiments Nos. 79-83, 85, and 89. 



245 



Elimination of Water- Vapob. 



The total water of respiration and perspiration eliminated per period and 

 per day and the total amount of water-vapor remaining in the calorimeter 

 chamber at the end of each period are shown in table 166. In the notes at the 

 foot of the table are shown the changes in weight of the chair, bed, bedding, 

 etc., in the chamber. The object of recording these data has already been 

 explained. (See p. 30.) 



Elimination of Carbon Dioxide and Absobption of Oxygen. 



Table 167 records the total weights of carbon dioxide exhaled and of oxygen 

 consumed. The method of obtaining the data has been previously explained. 



Table 164. Determinations in urine per period and per day Metabolism 



experiment No. 89. 



Date. 



Period. 



(a) 



Amount. 



(6) 



Specific 

 gravity. 



(o) 



Volume 



(a+b). 



(d) 



Nitro- 

 gen. 



1906. 

 Jan. 10-11. 



Jan. 11-12. 



7 a.m. to 1 p.m 



1 p.m. 7 p.m 



7p.m. 11 p.m 



11 p.m. 7 a.m 



Total 



Total by composite 



7 a.m. to 1 p.m 



1 p.m. 7 p.m 



7 p.m. 11 p.m 



11 p.m. 7 a.m 



Total 



Total by composite 



Total for 2 days. . . 



Grams. 



225.2 



200.6 



84.3 



134.3 



644.4 

 644.4 



126.5 



142.5 



91.4 



179.2 



539.6 

 539.6 



1184.0 



1.0264 

 1.0280 

 1.0303 

 1.0326 



1.0296 



c. c. 



219 



195 



82 



130 



626 

 626 



1148 



Grams. 



2.82 



2.73 

 1.49 

 2.95 



9.99 

 10.47 



3.18 

 3.69 

 2.54 

 5.05 



14.46 

 14.43 



24.45 



Since the measurement of these gases during the preliminary night furnishes 

 a part of the data regarding the transition from the katabolism with food to 

 katabolism during inanition, the amounts for the preliminary period have been 

 included whenever possible. 



Elements Katabolized in the Body. 



The elements katabolized in the body during each of the experiments are 

 recorded in table 168. The usual method of computation was followed in 

 obtaining the data. Preparatory to substitution in the formulas used in 

 computing the materials katabolized, the results have been carried to the 

 second decimal 32 place. 



32 See discussion of the use of significant figures, p. 17. 



