72 
Daily routine. — The daily routine was essentially the same as that 
in previous experiments with other subjects, with the exception that 
the subject observed his pulse and body temperature at more frequent 
intervals. The general routine was as follows: 
Table 82. — Daily programme — Metabolism experiment No. 25. 
6.50 a. m 
Take pulse and temperature. 
3.00 p. m 
Drink 200 grams water. 
7.00 a. m 
Pass urine, weigh self, weigh 
6.00 p. m 
Supper. 
absorbers. 
6.50 p. m 
Take pulse and temperature. 
7.45 a. m 
Breakfast, drink 100 grams 
7.00 p. m 
Pass urine, weigh self, weigh ab- 
water. 
sorbers. 
10.00 a. m 
Drink 200 grams water. 
9.00 p. m 
Drink 300 grams water. 
12.50 p. m 
Take pulse and temperature. 
10.20 p. m 
Take pulse and temperature. 
1.00 p. in 
Pass urine. 
10.30 p. m 
Drink 100 grams water, retire. 
1.15 p. m 
Dinner. 
1.00 a. m 
Pass urine. 
Table 83 summarizes the most important statistics in the diary kept 
b} T the subject. He weighed himself in underclothing twice each day. 
The reasons for not removing all the clothing in weighing, as was done 
in previous experiments, were two. It was desired to avoid the mus- 
cular work involved in dressing and undressing. It has also been 
found that the sudden increase of radiation of heat from the skin when 
the clothing was removed caused a decided rise of the temperature 
inside the chamber and thus disturbed the accuracy of the heat meas- 
urements to some extent. There was extremely little muscular exer- 
cise and no sensible perspiration. Hence the differences in weight 
from time to time may be considered to represent very nearly the 
actual changes in body weight. 
The determinations of pulse rate were made, of course, by the sub- 
ject himself, when either sitting or reclining, after several minutes' 
rest. The measurement at 6.50 to 7 a. m., however, was made just 
before rising. 
The body temperature was determined by means of a mercury ther- 
mometer. The temperature was, as a rule, taken in the axilla, although 
numerous sublingual observations were made. The thermometer was. 
as a rule, left in place ten minutes before reading. While the records 
of body temperature thus taken are probably not as accurate as might 
be desired, later observations with an electrical rectal thermometer 
since devised for continuous and accurate observations of internal 
body temperature a lead us to believe that the daily curves for the two 
are nearly parallel. 
In previous experiments a hygrometer had been placed in the 
chamber, and readings with dry and wet bulb were taken at frequent 
intervals. Inasmuch, however, as these readings were not used in the 
computations of results, and as it is desirable in rest experiments to 
a Arch. Physiol. [Pfliiger], 88 (1901), No. 9-10, p. 492. 
