44 



INFLUENCE OF FOOD PRESERVATIVES ON HEALTH. 



TABLE VIII. Boric acid and borax ingested and recovered in the urine during Series I- V, 



inclusive. 



[Expressed in terms of boric acid.] 



MEDICAL HISTORY. 



It is important in the study of the problems under discussion to 

 secure, as nearly as possible, the complete medical history of each of 

 the individual subjects. This was not officially arranged for, how- 

 ever, at the very beginning of the work, and the medical history of 

 each case for some time was secured without the supervision of the 

 representative of the Public Health and Marine- Hospital Service who 

 afterwards took charge of this part of the work. 



PHYSICAL AND MEDICAL EXAMINATIONS. 



The results of the physical and medical Examination of each of the 

 members of the class, made just before the beginning of the fore period 

 of Series I, are summarized in Table IX, the examination being con- 

 ducted by Dr. Edwin B. Behrends, with the collaboration of Dr. 

 Andrew Stewart, to whom thanks are due for the valuable and volun- 

 tary services rendered. A summary of all the analyses of urine is 

 given in Table X. 



TABLE IX. Preliminary physical examination of twelve men, each designated by number 



and initials. 



FIRST SET OF MEN. 



