MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



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The following table summarizes the results of these experiments. Detailed data of experi- 

 ment No. 7 will be found in Bulletin 69, and those of Nos. L3 and Id in Bulletin 109 of the Otii 

 of Experiment Stations: 



Table 8. — Summary of results of metabolism ■ cperiments Nos. IS, 14, "ml 7. 

 [Quantities per day.] 



GROUP H. EXPERIMENTS NOS. 



5, 15-17. REST EXPERIMENTS WITH ORDINARY DIET AND WITH 

 ALCOHOL DIET. 



The experiments in Group H were all rest experiments with the same subject, E. O. One 

 purpose of the 3 experiments with alcohol diet (Nos. 15-17) was to compare the effect of 

 alcohol when taken in different forms, as commercial alcohol, whisky, or brandy. The experi- 

 ment with ordinary diet (No. 5) has been chosen for comparison with the 3 experiments with 

 alcohol diet for the reason that, while the amount of protein was somewhat larger in the 

 former than in the latter, the amount of energy was practically the same in both diets. The 

 experiments in this group are less comparable than those in Groups G and I because of 

 differences in the circumstances under which the experiments were made. Experiment No. 5 

 was the first of the series of metabolism experiments in which the determinations of income and 

 outgo of both matter and energy were made. The diet in this experiment was more varied than 

 that in some of the later experiments, and the methods of sampling were not satisfactory, which 

 will account in part for the unusually wide discrepancies between the theoretical values for income 

 and those actually found for outgo of energy. On the other hand, experiments Nos. 15-17 were 

 made at a later period when the apparatus and the methods of experimenting were much improved. 



The preliminary period of experiment No. 5 began April 27, 1897, and continued 8 days, instead 

 of 4 days as usual, because unexpected circumstances delayed the starting of the experiment 

 proper. The subject entered the calorimeter at about 9 o'clock on the evening of May 3 and the 

 experiment proper began at 7 a. m. May 4, and continued 4 days. The diet in this experiment 

 furnished 119 grams of protein and 2,655 calories of energy per day. 



Each of the 3 experiments, Nos. 15-17, was of 2 days 1 duration, and one followed the other 

 without intermission and without the subject leaving the respiration chamber, so that in a way 



