The experiment was divided into three periods. In the first period of ten months the subject, with a body-weight of 66.5 kilograms, consumed daily on an average the amounts of food indicated in the following table. In this same table are also included the daily values, based on the preceding data, for a body-weight of 70 kilograms. Thirdly, the table likewise shows the amounts of utilizable food contained in the foodstuffs actually eaten, on the basis of 70 kilos body-weight. AVERAGE DAILY FOOD FOR TEN MONTHS +------------+-----------------+----------------+-----------------+ | |Actually consumed|Calculated for a| Utilizable Food | | | by the Subject, | Body-weight of |for a Body-weight| | | 66.5 Kilos | 70 Kilos | of 70 Kilos | +------------+-----------------+----------------+-----------------+ |Proteid | 66.1 grams | 69.1 grams | 57.3 grams | |Fat | 83.5 | 90.2 | 81.2 | |Carbohydrate| 230.0 | 242.0 | 225.0 | |Alcohol | 43.7 | 45.6 | 41.0 | |Fuel value | 2309 calories | 2427 calories | 2199 calories | +------------+-----------------+----------------+-----------------+ During this period of ten months, the body-weight of the subject remained practically constant, or indeed showed a slight gain up to 67 kilograms. All the functions of the body, and the general condition of good health, were in no wise impaired; so that in the words of the subject, the amount of food eaten must have been sufficient for the needs of the body. Somewhat striking is the fact that of the 2309 calories in the daily food, more than one-fourth was derived from the beer consumed daily (1200 c.c.). Also noticeable is the relatively small amount of carbohydrate taken daily, only about one-half the quantity designated by Voit as the average requirement of German laborers. Finally, it is to be observed that during this period of ten months, the daily consumption of food as calculated for a man of 70 kilograms body-weight, based on the actual food consumption of the subject with a weight of 66.5 kilos, was not widely different from our own statement of 60 grams of proteid and 2800 calories. The tendency, however, in Dr. Neumann’s experiment was toward lower fuel values and somewhat higher proteid consumption. In a second period of 50 days, with a slightly larger daily intake, Dr. Neumann observed that his body was laying by nitrogen, _i. e._, storing up proteid on a daily diet of 76.5 grams of proteid and with sufficient fat and carbohydrate to furnish a total fuel value of 2658 calories. In the final period of 8 months, the following data were obtained: AVERAGE DAILY FOOD FOR EIGHT MONTHS