Dressing and Undressing Experiments. 



79 



after the experiment ended at l h 30 m p. m. He drank no water during the 

 periods here reported. The results for the first portion of the experiment will 

 be reported elsewhere; the measurements here given are for the time between 

 l h 30 m a. m. and 7 h 30 m a. m., May 23, and between 7 h 30 m a. m. and l h 30 m 

 p. m. The subject reported that he slept fairly well during the night and was 

 not troubled at any time by the pneumograph. He said he did not sleep any 

 after 7 h 30 m a. m.. but that he had a slight backache and was chilly about 

 the ankles. 



The pulse and respiration were taken as usual and are given in table 43. 

 The body-temperature was measured by means of the electrical rectal thermom- 

 eter and was as follows. l h 30 m a.m., 36.18 C. ; 3 h 30 m a.m., 36.10 C; 

 5 h 30 m a. m., 36.46 C. ; 7 h 30 m a. m., 36.53 C. ; 9 h 30 m a. m., 36.63 C. ; ll h 30 m 

 a.m., 36.61 C. ; l h 30 m p.m., 36.66 C. The metabolism for 6 hours while 

 lying asleep and 6 hours while lying awake is given in table 44. The measure- 

 ments were in 2-hour periods. 



Table 43. Record of pulse and respiration Metabolism experiment No. 157. 



Dressing and Undressing Experiments, 

 metabolism experiment no. 158. 



Subject, H. G., February 24, 1905. Age, 22 years 5 months; 

 height, 160 cm.; weight without clothing, 49.2 kilos. 



The subject (a student) entered the chamber at about 8 a. m., after a break- 

 fast consisting of prepared cereal, 1 glass of milk, 1 tablespoonful of sugar, 

 and a cup of coffee. He was weighed at 8 h 02 m a. m. and the experiment 

 began at 9 h 15 m a.m. At 9 h 18 m a.m., and again at ll h 08 m a.m., he went 

 to the food aperture. The rest period, during which there was some writing, 1 

 continued until 12 h 15 m p. m. 



1 The first three hours of this experiment and the following 21 experiments com- 

 prised a part of a study of the influence of mental work on metabolism. The sub- 

 jects were all students and this was their first experiment. Benedict and Carpenter, 

 U. S. Dept. of Agr., Office Exp. Stas. Bui. 208, 1909. 



