H. L. H., June 14, 1910

The experiment with this subject differed considerably from the four previous experiments discussed in that it was but 5 hours long and the measurements were made with the bed calorimeter in Boston in 1-hour periods. The food, which was largely carbohydrates, was taken in one meal (supper) approximately 1 1/4 hours before the beginning of the measurements. It consisted of 226 grams rolls, 97 grams sugar cookies, 44 grams sugar, 296 grams strawberries, and 468 grams milk. The fuel value of this diet was 1,731 calories, of which 68 per cent came from carbohydrates, 21 per cent from fat, and 11 per cent from protein. The basal value used for comparison was determined on the following day in a series of quiet periods, which were alternated with restless periods to avoid the necessity of enforcing muscular rest for too long a time. This alternation is in accordance with the usage of Professor Johansson and was our first attempt to employ his method. The data for these quiet basal periods are given in table 237. The results obtained in the food experiment, which are given in table 236, show an increment in the carbon-dioxide production for practically 5 1/4 hours after the food was given. The oxygen consumption also showed an increase in the first three periods, while the heat production continued above the basal value in 4 periods. Basal values were obtained for all the factors of metabolism in the last period of the experiment.

Table 236. - H.L. H., June 14, 1910. Lying. (1-Hour Periods). Supper (Mixed Diet)

Amount, 1,131 grams; nitrogen, 7.31 grams; total energy, 1,794 cals.

Fuel value: Total, 1,731 cals.; from protein, 11 p. ct.; from fat, 21 p. ct.; from carbohydrates, 68 p. ct.

Nitrogen in urine, 0.34 gram per hour. Basal values (June 15, 1910): CO2, 25 grams; O2, 22 grams; heat, 68 cals.

Table 237. - Basal Metabolism Of Subject H. L. H., June 15, 1910, In Bed Calorimeter.1

(1-hour periods).

1Nitrogen in urine per hour 9h40m a. m. to 8h25m p. m., 0.38 gram.