306 VITALITY AND EFFICIENCY WITH RESTRICTED DIET. 



remained singularly constant for the squad as a whole throughout 

 practically the entire period, aside from the general slight change of 1 

 gram in level in the periods indicated above. The nitrogen in urine 

 in the last week in October is essentially on the same level as the 

 nitrogen in urine in the last week in January. 



Table 44. — Total nitrogen in food and urine^ — Squad A. 

 [Average per man per day.] 



' The values in this table, except for January 13-14, represent only days when the diet was 

 controlled and do not include the uncontrolled Sundays. 



NORMAL URINARY NITROGEN OF A GROUP OF COLLEGE STUDENTS. 

 Although the first 5 values for the urinary nitrogen in table 44, which 

 are also shown in table 41, may be taken to indicate the normal 

 nitrogen output for the group of 12 men when they were on unrestricted 



