366 



MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



Table LXXXIX. — Income and outgo of energy — Metabolism i cperimenU Nos. 19-31. 



EXPERIMENTS NOS. 32-34 — WORK. NO. 33 WITH ALCOHOL DIET. 



Subject. — J. F. S., the same as in experiments of the two previous series, Nos. 26-31. His 

 weight with underclothing was about 66.5 kilograms (145A- pounds). 



Occupation <l<triiitj experiTrient. — Work, 8 hours a day. upon a stationary bicycle, as in the 

 previous series of experiments. 



Duration. — This experiment was the second of a series of 3, each of which continued 3 days. 

 A preliminary period of 4 days preceded the first. The series was intended to be as nearly as 

 possible u repetition of the previous series, Nos. 29-31, with the exception that the order in which 

 the supplemental materials were added to the basal ration was butter, alcohol, sugar, while in 

 the previous series the order was sugar, butter, alcohol. The preliminary period began with 

 breakfast April L6, 1900, and the subject entered the respiration chamber on the evening of April 

 19. The first experiment of the series, No. 32, began at 7 a. m. April 20; the second. No. 33, at 

 7 a. m. April 23, and the third. No. 34, at 7 a. m. April 26. The subject thus spent 9 days and 

 10 nights within the respiration chamber. 



Diet. — As has already been indicated, this scries was a duplicate in reverse order of the 

 previous series. There was a basal ration differing slightly in the different experiments on 

 account of differences in the composition of the milk. This ration furnished approximately 100 

 grams of protein and 2,980 calorics of energy, or practically the same as in the previous scries. 

 To this basal ration were added: In No. 32, 63.5 grams of butter per day. furnishing 1 gram of 

 protein and 509 calories of energy; in No. 33, 79.5 grams of 90.6 per cent alcohol, furnishing 72 

 grams of absolute alcohol and 509 calories of energy per day, and in No. 34, 12S grams of cane 

 sugar, furnishing 507 calories of energy. The total ration therefore in this series of experiments 

 furnished 100 grams of protein and 3,490 calories of energy per day. The alcohol was taken in 

 6 doses, as usual, and the sugar was also taken at frequent intervals, but the butter was consumed 



