160 FOOD INGESTION AND ENERGY TRANSFORMATIONS. 



grams of nitrogen were taken in 1,605 grams of beef tea. Thus the beef 

 tea, particularly that made from the fresh beef, did not consist wholly of 

 extractives, but in all probability it contained an appreciable amount 

 of protein. Accordingly, we must also consider here the possibility 

 of a true protein ingestion. 



In a few of the calorimeter experiments the beef tea was given to 

 the subject cold, but usually it was taken hot; the temperature of the 

 liquid is recorded for each experiment in the statistical tables, also in 

 the summary tables. In the respiration experiments, much smaller 

 amounts were given than in the calorimeter experiments and the tem- 

 perature was usually between 50 and 60 C. The total increment in 

 the metabolism was computed for the respiration experiments by the 

 planimeter method as described in the section on the ingestion of coffee. 

 (See page 151.) Statistical data not included in the tables or in the 

 discussion are given in the following paragraphs for all of the experiments. 

 In this and subsequent statistics, the times given include both basal 

 and food periods if the basal values were determined immediately 

 before the ingestion of the food. 



CALORIMETER EXPERIMENTS. 



E. H. B., 8 h 27 m a. m. to 4*27 m p. m., April 8, 1907. 72.9 kilograms. 

 Urinated 6 h 50 ra a. m. and 4 h 27 m p. m.; took enema about 7 h 15 m a. m. More 

 or less activity in first period in connection with receiving beef tea and dishes, 

 as subject was obliged to go to food aperture several times. Very quiet 

 in last part of first period and in second period, but not so quiet in fourth period. 

 Reading greater part of time; occasionally drowsy. Drank 134 grams water 

 in fourth period. Body-temperature: 36.57, 36.50, 36.57, 36.61, and 

 36.66 C. Pulse rate, 51; respiration rate, 18. Beef tea heated to about 

 80 C. in preparation. Creatinine in beef tea, 0.0121 gram in 100 c.c.; crea- 

 tine, 1 0.109 gram in 100 c.c. 



A. H. M., 8 h 44 m a. m. to 4 h 44 m p. m., April 29, 1907. 67.4 kilograms. 

 Urinated 6, 9 h 47 m , 10 h 54 m a. m., 2 h 53 m and 5 h 20 ra p. m. Somewhat restless 

 in first and third periods; more quiet in second and fourth periods; much of 

 time reading. Body-temperature : 36.70, 36.51, 36.38, 36.22, and 36.42 C. 

 Pulse rate, 60; respiration rate, 20. 



A. W. W., 8 h 34 m a. m. to 4 h 24 m p. m., May 2, 1907. 58.4 kilograms. 

 Urinated 7 h 10 ra , 9 h 40 m , 10 h 32 m a. m., 12 h 28 m , 2 h 32 m , and 4 h 35 m p. m. Felt 

 cold after taking both portions of beef tea. Considerable activity in tele- 

 phoning and getting beef tea from food aperture, but after 9 h 06 m a. m. subject 

 sat quietly and read ; very quiet in other periods. Drank water at beginning 

 of fourth period (30 grams). Body-temperature: 36.41, 36.60, 36.64, 

 36.76, and 36.75 C. Pulse rate, 61; respiration rate, 20. Creatinine in 

 beef tea, 0.011 gram in 100 c.c.; creatine, 1 0.161 gram in 100 c.c. 



A. W. W., 8 h 25 m a. m. to 4 h 25 m p. m., May 9, 1907. 58.8 kilograms.- 

 Urinated 7 h 10 ra a. m. (after enema), 12 h 32 m and 4 h 34 m p. m. Very quiet 

 in first period after 9 o'clock, also in second and fourth periods; in third period, 

 somewhat more active. Perspired very freely for a short time after drinking 

 beef tea. Drank water at beginning of both second and third periods (216 



'Expressed as creatinine. 



