64 VITALITY AND EFFICIENCY WITH RESTRICTED DIET. 



respiration chamber; others taken on some of the men while they 

 were in rechning position in the psychological laboratory. 



Dec. 20, 1917, to Jan. 6, 1918, inclusive. Christmas recess. Squad A. Urine 

 collected daily by Gut; except on December 22-30 and December 

 31 — January 1 by Pec. 



January 5, Squad B. Came to Boston; supper at restaurant. Regular even- 

 ing psychological measurements. McM had had trouble with 

 stomach previous 10 days; Lon ill, substitute, Kim; Mac called to 

 Naval Reserves and Sch took his place. Regular psychological 

 measurements on two new subjects, Kim and Sch. First clinical 

 examination, Dr. Goodall; first blood examination. Miss Gibson; 

 first Du Bois body-surface measurements; first profile photographs. 

 Fifth experiment in group respiration chamber. 



January 6, Squad B. In Boston; at Laboratory part of morning. First body- 

 weights for Kim and Sch. First standing experiments with porta- 

 ble respiration apparatus and first pulse records standing. First 

 treadmill walking experiments. No psychological measurements in 

 morning, only strength of grip. Standing and treadmill experi- 

 ments made serially, the routine for the first subject, which was 

 typical of the others, being as follows: First subject called at about 

 4>»00™ a. m.; when weighed and dressed, he served two periods 

 as subject for standing experiment, with pulse records during stand- 

 ing; at 5 o'clock he was ready for the 24-minute treadmill experi- 

 ment; pulse record made 5 minutes after walking experiment ended. 



January 7, Squad B. First urine collections by all but How and Lon. Kim 

 now serving in place of McM. 



January 7, Squad A. Can, Gar, Gut, Mon, Pea, Pec, and Vea returned 

 from Christmas recess; at table for all three meals on this day. May 

 at dinner and supper, but breakfasted elsewhere. 



January 8, Squad A. Bro returned and at training table. 



January 8. Squad B. First urine collections by How and Lon. First day of 

 controlled, reduced diet. 



January 9, Squad B Affidavit signed 



January 11, Squad A. Kon and Tom returned; ate only supper at training 

 table. Spe did not return to the squad. 



Jan. 11 to Feb. 2, Squad A. Exercise records kept during this period. 



Jan. 11 to Feb. 3, Exercise records kept by an uncontrolled squad of fellow 

 students. 



January 11 to 28, Squad B. Exercise records during this period. 



January 12, Squad A. Came to Boston; dinner and supper at restaurant. 

 Tom had dinner in Springfield. Regular evening psychological 

 program. Individual S-minute practice on treadmill. Seventh 

 clinical examination. Dr. Goodall. Second blood examination. Miss 

 Gibson. Eighth experiment in group respiration chamber. 



January IS, Squad A. In Boston; at Laboratory part of morning. Regular 

 morning psychological program. Meals uncontrolled except break- 

 fast at Laboratory. This was the last Sunday of uncontrolled 

 meals. Excess eating on this date and consequent gain in weight 

 led to subsequent sharp reduction in diet for a few days for Kon, 

 Bro, and Gar. 



January IS, Squad B. Came to Boston; lunch on train; supper at restaurant. 

 Regular evening psychological program. Kim serving in place 

 of McM and Sch in place of Mac. Individual 5-minute practice 

 walking on treadmill. Second blood test. Miss Gibson. Second 

 clinical examination, Dr. Goodall. Sixth experiment in group res- 

 piration chamber. 



