29 



ma}" be fairlj" said to provide a moderately hard year's work, yet he 

 passed with an average grade of B. 



In general it maj" be said that this subject, whose diet contained but 

 67 per cent of the protein and 95 per cent of the energy called for by 

 the standard selected for comparison, did his work well throughout 

 the year, and showed neither loss of weight nor any physical deterio- 

 ration that could be detected by careful medical examination. The 

 unusually small quantity of protein in the daily ration brings up the 

 question whether he was really in nitrogen equilibrium or whether 

 he was losing nitrogen and replacing it by fatty tissue or water. It 

 would, therefore, have been especially interesting had opportu- 

 nity offered to determine the outgo of nitrogen in order to test the 

 question. 



DIETARY STUDY NO. 405. 



Subject E was 26 years old, 5 feet 5.5 inches in height, and weighed 

 136.3 pounds. Although small of stature, his measurements in other 

 respects were not far from the general run of men of the same age. 

 Examination showed that he was in fair physical condition and fairly 

 well nourished. 



He was a senior in the Lawrence Scientific School and carried about 

 seven courses, most of which pertained to engineering. The univer- 

 sity work was, perhaps, no more difficult than that of many scientific 

 students in their senior year. 



He spent daily 7f to 8 hours in sleep, 6i to 9i hours in college 

 work, and had no outside work. His exercise consisted in walking 

 two or three miles per day. 



Table 7. — Kinds of food, number of orders, and cost of each kind, and average cost and 

 amounts of protein and energy of dietary study No. 405. 



SUBJECT E. 



[For explanation of numbers in parentheses, see p. 11.] 



Kinds of food, number of orders, and cost of each 

 kind. 



Period 1, S weeks, November 30 to December 20. 



Beef hash (20), 3, 21 cents; beefsteak pie (26), 1, 10 

 cents; lamb, roast (32), 3, 30 cents; venison potpie 

 (30), 1,10 cents: lamb croquettes (37), 1, 10 cents; 

 turke V and sauce ( 54 ) , 4, 60 cents. Total meats, etc . 



Chowder (57), 6, 15 cents; purt^e of peas (58), 3, 9 

 cents; soup (59) , 5, 15 cents. Total soups, etc 



Oysters, raw (68), 3, 45 cents; oyster pie (73), 1, 12 

 cents. Total fish, etc 



Eggs, raw (77), 2, 16 cents; omelet (81), 2, 20 cents. 

 Total eggs, etc 



Butter (87). 41, 41 cents; milk, bowl (94),4,a 18 cents; 

 milk, glass (95), 49, 98 cents; milk. 4-ounce pitchers 

 (96), 6, 6 cents. Total dairy products 



Cost, protein, and energy of daily food. 



Total. 



Cost. 



Cents. 

 6.7 



1.9 



2.7 



1.7 



7.8 



Protein. Energy 



Grams. 

 21.5 



3.9 



3.5 



3.1 



18.9 



Calories. 



284 



77 

 50 

 52 



591 



Digesti- 

 ble 

 protein. 



Gravis. 

 20.9 



3.8 



3.4 



3.0 



18.3 



Available 

 energy. 



Calories. 

 247 



66 



43 



46 



550 



a Includes two orders of hot milk. 



