500 Proceedings of Royal Society of Edinburgh. [sess. 
about 3 p.m., taking a little hot water twice or thrice in the 24 
hours. During the observation period he reported that he was 
feeling well and satisfied, but on the last day allowed that he had 
not slept well, that he was feeling hungry, and that he would 
appreciate a change to a diet containing some bread and butter. 
After five days of the banana diet his weight was 50 kilos. — a 
loss of 2 kilos. 
The food- value of his diet amounted for the five days to : 
proteid, 37*5 grammes; fat, 3*5 grammes; and carbohydrates, 999 
grammes, the equivalent per man per day being : — 
Proteids . . .7*5 grms. 
Fats ..... 0*7 ,, 
Carbohydrates . . . 199*8 ,, 
Calories . . • .856 
His excretions were carefully analysed during the period, and 
the results of the analyses are shown in the following table : — 
Urine. 
1st 
Day. 
2nd 
Day. 
3rd 
Day. 
4th 
Day. 
5th 
Day. 
Average. 
Per 
cent, of 
Total N. 
Quantity, c.c 
1040 
950 
500 
460 
860 
762 
Specific gravity 
1014 
1014 
1020 
1022 
1012 
Reaction, on each day alkaline 
Total nitrogen, grammes 
3*92 
4-25 
2-96 
2*35 
2 V 68 
3'23 
Urea nitrogen, grammes 
3*30 
3-58 
2*26 
2-35 
2-68 
2-83* 
80* 
Ammonia nitrogen, grammes 
*112 
•095 
•061 
*084 
•095 
*09 
2-5 
Uric acid, grammes 
*308 
•304 
•345 
•333 
•328 
•32f 
3-0 
Non-urea nitrogen, grammes . 
•62 
•67 
•70 
•73 
•76 
•70 
20 
Phosphoric acid, grammes 
•88 
•88 
•80 
1-00 
•84 
•88 
25 
Fjeces. 
Dry weight, grammes 
1 23-2 
I 29-2 
1 29 
1 29-5 j 
30-5 
1 22-5 
Total nitrogen, grammes 
■81 
1-02 
1-56 
112 
1-21 
1-14 
Nitrogen 
BALANCE. 
Intake. 
Output. 
Food 
1-21 
Urine 
3-23 
Faeces 
1-14 
4-37 
Food Analysis. 
Bananas, Proteid, 0*87 ; Fat, 0’08; Carbohydrate, 23*17 per cent. 
* Average urea, 6’2. t Or 0’106 grm. N. 
