192 APPENDIX 



It will be seen that there is a slight but constant 

 improvement on the average when nutrients were 

 given, which would be still more evident if the total 

 nitrogen had been estimated in the Bristol cases instead 

 of the urea and ammonia, though of course these 

 together account for about 96 per cent of the total 

 nitrogen. 



In the second Bristol case, the figures are a trifle 

 better than Succi's, but she was taking a little meat 

 juice by mouth. It is very noteworthy that the urea 

 output does not increase for several days after mouth 

 feeding is started again. 



(b). Carbohydrate Absorption. This may be estimated 

 by the relation of ammonia nitrogen to urea nitrogen, 

 and also by the output of diacetic acid and acetone. 

 It will be seen in the Bristol cases that acetone and 

 diacetic acid rapidly increased in quantity until feeding 

 by the mouth was commenced, when they passed away. 

 The normal 5 per cent of ammonia nitrogen also rose 

 to a high figure during rectal feeding, but soon became 

 normal when food was given by mouth. Two com- 

 parisons may be instituted. The first compares Succi 

 with Case I. 



The second compares the average of nine girls treated 

 for gastric ulcer by simple starvation with the Bristol 

 Case I. 



