224 



FOOD INGESTION AND ENERGY TRANSFORMATIONS. 



TABLE 167. H. L. H., June 7, 1911. Lying. (Values per minute.) 



Lactose: Amounts, 100 grams lactose, juice of half lemon; energy, 379 cals. ; from carbohydrates. 

 100 p. ct. 



^Subject drank solution (325 c.c.) at 9 h 53 m a. m. 



TABLE 168. A. J. O., January 4, 1915. Lying. (Values per minute.) 

 Lactose: Amount, 100 grams; energy, 374 cals.; from carbohydrates, 100 p. ct. 



Subject drank mixture (about 300 c.c.) of lactose and cereal coffee at Il h 39 m a. m. About 

 1 gram of the preparation per 200 c.c. was used for the cereal coffee. 



GENERAL DISCUSSION OF RESPIRATION EXPERIMENTS WITH CARBOHYDRATES. 



An inspection of tables 126 to 168 shows that the typical picture of 

 a marked increase in the carbon-dioxide production appears in practi- 

 cally every case. The increment in the oxygen consumption, although 

 not so large as that for the carbon-dioxide production, also appears in 

 most of the experiments. Naturally the values for the heat produc- 

 tion, computed from the gaseous exchange, show corresponding incre- 

 ments. The increase in the carbon-dioxide production is paralleled by 

 a marked rise in the respiratory quotient which, in a large number of 

 periods, exceeds unity. This is in harmony with the results obtained 

 in the calorimeter experiments, for although it was not feasible to dis- 

 cuss the respiratory quotients for those experiments, since the basal 



