MISCELLANEOUS METHODS AND APPARATUS. 67 



height, surface area, and body photographs ; records of muscular activ- 

 ity so far as they could be made; clinical examination, including blood 

 pressure, blood examination, records of pulse-rate and body tempera- 

 ture; measurement of the gaseous metabolism; quantitative measure- 

 ments of muscular work; and measurements of the neuro-muscular 

 processes. Under these several heads, the measurements of gaseous 

 metabolism, body temperature, muscular work, and neuro-muscular 

 processes were, in general, carried out with essentially new techniques, 

 some of the apparatus and methods being specifically designed for this 

 research. All of the techniques have been subjected to severe control 

 tests, not only prior to but during the progress of this research. 



MISCELLANEOUS METHODS AND MINOR APPARATUS. 



FOOD CONTROL. 



Since the fundamental prerequisite of the research was an accurately 

 controlled and definite knowledge both of the character and the amount 

 of the food intake. Squad A was given a special "training table" in 

 Woods Hall, the large mess hall of the college. Special waiters were 

 assigned and representatives of the Laboratory staff were present at 

 every meal and personally supervised all the food issued. The 12 men 

 occupied regular seats at the table, which was pleasantly located in 

 one corner of the dining room, with a minimum of confusion due to 

 the passing of other waiters and other members of the college body. A 

 psychological point that was not realized at the time, but developed 

 later, was the desirability of avoiding the display of food served ad 

 libitum Sit the other tables. We believe that if a private dining room 

 had been used, it would have helped materially, for the lavish display 

 of food within 5 or 6 feet of the dieting squad was at times distracting, 

 to say the least. Convenient to the serving table were side tables for 

 weighing, sampHng, and keeping the records, and special utensils such as 

 dishes for sugar, butter plates, etc. 



Mr. Edward L. Fox was primarily in charge of the dietetic apportion- 

 ment at the training table. His skill and diplomacy secured not only 

 extraordinary accuracy in sampling and intelligent records, but he was 

 persona grata with the entire squad during the research. During the 

 diet-reduction period of Squad B, Mr. Fox had the intelligent cooper- 

 ation of Mr. Harry Silverman of the Laboratory staff. 



KINDS OF FOOD SERVED. 



To minimize labor in the preparation of special foods or combinations 

 of foods, and yet maintain the variety and palatability of the food sup- 

 plied, it was decided at the outset to serve to the squad practically all 

 articles of diet regularly served in the diriing room at any given meal. 

 Shght deviations from this rule occurred occasionally when substitu- 

 tions were made for a part of the regular menu, or infrequent additions, 



