258 



FOOD INGESTION AND ENERGY TRANSFORMATIONS. 



TABLE 189. D. J. M., June 3, 1910. Sitting. (1-hour periods.) 

 Cream: 



Amount, 398 grams; nitrogen, 1.55 grams; total energy, 1,074 cals. 



Fuel value: Total, 1,060 cals.; from protein, 4 p. ct. ; from fat, 89 p. ct. ; from carbohydrates, 



7 p. ct. 



Basal values (June 3, 1910) : CO2, 25 grams; Oz, 20.5 grams; heat, 76 cals.; respiratory quotient, 

 0.88. Nitrogen in urine, 0.49 gram per hour. 



Subject finished eating 15 minutes after beginning of this period. The cream was taken 

 quickly. 



TABLE 190. D. J. M., June 7, 1910. Sitting. (1-hour periods.) 

 Cream: 



Amount, 376 grams; nitrogen, 1.35 grams; total energy, 1,257 cals. 



Fuel value: Total, 1,245 cals.; from protein, 3 p. ct.; from fat, 92 p. ct. ; from carbohydrates, 



5 p. ct. 



Nitrogen in virine, 0.43 gram per hour. 



Basal values (June 7, 1910): CO 2 , 26 grams; 2, 21 grams; heat, 1 80 cals.; respiratory quotient, 

 0.89. Nitrogen in urine, 0.45 gram per hour. 



eliminated corrected for change in body-weight, but not for change in body-temperature. 

 2 Subject finished eating 11 minutes after beginning of this period. The eating occupied 7 

 minutes. 



BUTTER AND POTATO CHIPS. 



Relatively large amounts of fat were ingested in the diet of butter 

 and potato chips. The latter is a common food material in America 

 and consists of thin slices of raw potato fried in deep fat. As a rule 

 potato chips have a composition of approximately 5 per cent protein, 

 40 per cent fat, and 42 per cent carbohydrate, with a fuel value of 

 5.5 calories per gram. Details regarding the composition of those 

 used in our study may be found in table 50. ] It will be seen from these 

 figures that the potato chips not only served as a vehicle for the butter, 



'See p. 124. 



