INGESTION OF FAT. 



261 



increment in the metabolism is small in amount but is nevertheless 

 distinctly positive, although the basal value for the heat production was 

 reached in the third period and presumably in the same period for the 

 carbon-dioxide production. 



TABLE 193. A. H. M., May 15, 1907. Sitting. (2-hour periods.) 

 Butter and potato chips: 



Amounts, 113 grams butter, 105 grams potato chips; nitrogen, 1.11 grams; total energy, 



1,512 cals. 

 Fuel value: Total, 1,503 cals.; from protein, 2 p. ct.; from fat, 85 p. ct.; from carbohydrates, 



13 p. ct. 

 Basal values (March 6 and 9, 1907): CC>2, 51 grams; Oz, 46 grams; heat, 164 cals. 



'Subject ate food in 28 minutes. 



5 Sample included amount for about 21 hours preceding eating of food. 



TABLE 194. A. W. W., April 25, 1907. Sitting. (2-hour periods.) 



Butter and potato chips: 



Amounts, 85 grams butter, 104 grams potato chips; nitrogen, 1.05 grams; total energy, 



1,285 cals. 

 Fuel value: Total, 1,276 cals.; from protein, 2 p. ct.; from fat, 82 p. ct.; from carbohydrates, 



16 cals. 

 Basal values (March 15 and 21, 1907) : CO2, 50 grams; O-2, 41 grams; heat, 155 cals. 



Subject ate food in 26 minutes. 



J. J. C., March 12, 1910. The experiment on this date was the first 

 of a supplementary series with the butter and potato chips diet carried 

 out in Boston three years after the Middletown experiments. The 

 subject took but 38 grams of butter and 91 grams of potato chips; the 

 results obtained are given in table 195. Although the basal value was 

 determined on the same day as the values after food, and the general 

 trend of the results was similar to that of the results obtained in the 

 previous experiments, we do not feel justified in laying great emphasis 



