98 



Influence of Inanition on Metabolism. 



carbohydrates, but it seems reasonable to believe that food protein, food, fat, 

 and food carbohydrate before being katabolized are first converted into body 

 protein, body fat, and body carbohydrate. For this reason, the chemical 

 elements determined in the absorbed food are combined into body protein, body 

 fat, and body carbohydrate by means of the formulae given on page 38. In 

 brief, it may be said that the elements of the absorbed food are transposed to 

 terms of body material. Though it is practically the same as has been explained 

 on page 37, an example of the method of performing the transposition, 



Table 57. Illustrative table showing computations of elements and materials ab- 

 sorbed from food Metabolism experiment No. 70 First day, December 20, 

 1904. 



(a) 



Total 



weight. 



(6) 



Nitrogen. 



(c) 

 Carbon. 



(d) 

 Hydrogen. 



(e) 

 Oxygen. 



(/) 

 Ash. 



Food and drink: 

 Solids in food. . 

 Water in food. . 

 Water in drink. 



Grams. 



351.57 

 1306.33 



139.00 



Total. 



Feces : 

 Solids.. 

 Water.. 



1796.90 



Grams. 

 8.54 



8.54 



Grains. 

 216.90 



Grams. 

 33.70 

 146.18 

 15.55 



216.90 



195.43 



Grams. 



81.45 



1160.15 



123.45 



1365.05 



Gra ms. 

 10.98 



10.98 



Total. 



20.49 

 40.48 



60.97 



3.86 



3.86 



Absorbed. 



Protein * . , 



Fat ! 



Glycogen l 



Water 



Ash , 



1735.93 



49.08 



192.65 



73.10 



1414.73 



6.372 



Total. 



1735.93 



1326.78 



10.80 



23.31 



36.11 



1256.42 



1826.64 



7.12 

 0.75 



6.37 s 



7.12 



1 In terms of body material. 



a Ash of protein deducted. 



together with the mathematical check upon the accuracy of the computations, 

 is shown in table 57. 



On the first day of the experiment according to these computations there 

 were absorbed from the food 8.18 grams of nitrogen, 204.86 grams of carbon, 

 188.99 grams of hydrogen, 1326.78 grams of oxygen, and 7.12 grams of ash. 

 From the weights of elements absorbed and by means of the formulae given on 

 page 38 the corresponding weights of body protein, fat, and carbohydrates 

 formed from the elements absorbed were next computed. 



The record of the amount of food absorbed and the amount of each element 

 (ash being treated as an element) contained therein is given in table 58, 

 while table 59 repeats the quantity of each element, and shows the amounts 

 of protein, fat, and carbohydrates derived from these elements in terms of 

 body materials. 



