61 



mental work. In the case of the men who did outside work the grades 

 attained by them in their college courses are, of course, only an approxi- 

 mate indication of the amount of mental work. The following table 

 shows the number of courses taken and the average grades attained 

 by each subject for the year: 



Table 18. — Scholarship of the mbjeds as shown bif the number of courses of study taken 

 and the average grades attained throughout the year. 



a Between B and C. 



A glance at the table shows that on the whole the work of these men 

 in their college courses was of a very high grade; in fact, far above 

 the average. Moreover, the studies pursued were, with some excep- 

 tions, of an advanced nature. 



CONCLUSIONS. 



The general trend of the results of these studies is clear. The ten 

 young men performing approximately the same duties under the same 

 general conditions lived on diets that differed widely in respect to the 

 amounts of protein and energy supplied. The differences were notice- 

 able not only with the different individuals, but also, in some cases, 

 with the same individual in different periods. So far as it is possible 

 to judge, the men appeared to be in bodily equilibrium on their vari- 

 ous diets during the different periods; at least they showed no change 

 in general physical condition that could be detected by careful med- 

 ical examination. 



In discussing the results of the investigations, especially with refer 

 ence to the adequacy of the diet for daily needs, it has been a.ssumed 

 that the occupation of the subjects may be considered sedentary. A 

 number of the men took more or less exercise and had some work 

 other than that connected with their college duties, yet it seems fair 

 to conclude that the dailv lives of all the men should be called sedentary 



