Influence on General Metabolism. 



527 



Body temperature, pulse, and strength, as affected by the ingestion of food. 

 Under the corresponding sections in the discussion regarding fasting experi- 

 ments it has been pointed out that the ingestion of food resulted in an increase 

 in the pulse and a marked increase in the strength. By examination of the 

 detailed data for pulse, and dynamometer tests, the relative increase in these 

 factors may be observed. 



1 Beginning of fast. 



- Made comparable with weights during fast by including 0.54 kilo, assumed weight of 

 underclothes. 



INFLUENCE ON GENERAL METABOLISM. 



The general factors of metabolism, the urine, respiratory products, and heat 

 production are all influenced by the ingestion of food and in the discussion 

 beyond attention is called to the degree to which they are affected. 



Urine, ingested water, and water vaporized. The ratios of the water ex- 

 ereted in the urine and of the water of respiration and perspiration to water 

 ingested during the food experiments are given in table 250. 



The amount of water ingested in the food and drink is above 1400 grams in 

 all instances and hence the ratios of water in urine to ingested water do not 

 exhibit such wide variations as occur in the fasting experiments. In general, 

 about 72 per cent of the water of food and drink is excreted in the urine. The 

 ratios of water of respiration and perspiration to water ingested are also more 

 nearly constant. 



Nitrogen balance. That the small amounts of nitrogen in the food of 

 experiments ISTos. 70, 72, 74, and 76 were not sufficient in any instance to restore 

 complete nitrogen equilibrium, since the body lost nitrogen persistently, may 

 be seen from an inspection of the nitrogen balances given in table 251. 



