262 VITALITY AND EFFICIENCY WITH RESTRICTED DIET. 



included in the composite samples, as outlined on page 68, and 

 such staples as bran, sugar, shredded wheat biscuit, and butter were 

 not analyzed. The total nitrogen for the day was 12.85 grams and 

 the total energy 2,559 calories. These values represent an average 

 for the 12 men. Individual variations, of course, were somewhat 

 wide. The energy in this table represents the actual heat of combus- 

 tion, i. e., the gross calories. The menu is given primarily as an 

 indication of the character and amounts of the foods taken by the 

 subjects during the period of approximate weight maintenance. 



A few standard meals were regularly used throughout the entire 

 series of tests. Thus, on the biweekly trips to Boston, the men had 

 a standard supper at a local restaurant. This was given through- 

 out the entire winter with but slight changes; repeated samplings of 

 the supper showed practically uniform values for both nitrogen and 

 heat of combustion. These are shown in table 25. The meal was 



Table 25. — Standard restaurant supper.^ 



Kind and amount of food. 



1 fried egg 



2 pieces bacon (about 15 gms.) 



1 boiled potato (medium size; about 115 gms.) 



1 dish cooked spinach (113 gms.) 



Apple pie (4? oz. or 120 gms.) 



i orange (about 80 gms. .) 



1 pat butter (about 10 gms.) 



Total 



No drink except water. 

 Vinegar on table for spinach, if desired, 

 sugar or oil. 



No 



Nitrogen. Energy. 



gms. 



22.36 



.02 



2.38 



cals. 



2631 



76 



707 



1 Lettuce was served instead of spinach until December 15. Squad A was given very weak 



tea with slice of lemon and 7 to 12 grams sugar beginning with December 19. On 

 January 26 the amount of bacon was changed to 1 piece (about 8 grams). 



2 Determined in composite sample. 



especially relished by the men, who frequently spoke of it on arriving 

 at the Laboratory. It has special significance as an indication of the 

 character and amount of the food material eaten by each member of 

 both Squads A and B on the evenings prior to the psychological tests. 



Similarly on Sunday morning, at the conclusion of the all-night 

 respiration experiments, and just prior to the psychological observa- 

 tions, a standard breakfast was provided at the Nutrition Laboratory. 

 This remained practically uniform throughout the entire period of 

 observation. The menu for this meal is given in table 26. The total 

 amount of nitrogen supplied in this case was 3.55 grams and the total 

 energy 640 calories. 



On a certain number of occasions the subjects came to Boston early 

 enough in the day to take a dinner at the restaurant. No major 



