130 Proceedings of Royal Society of Edinburgh. [sess. 
The oil rubbed in amounted to only 306 grms., an amount which 
need not be considered. Hence we see that even at the end of a 
fast of thirty days, there still was a very considerable quantity of 
fat in the body. 
Hofmann ( Ztsch . /. Biolgie , Bd. viii. p. 153) found that dogs 
had to be starved for a period of about thirty days before all the 
fat had disappeared from the body, and that the final disappearance 
of fat was indicated by a sudden rise in the excretion of nitrogen, 
after which the dogs, unless fed, rapidly died. This did not occur 
in Jacques’ case, and we should consider the appearance of such a 
rise in the urea excretion as the important indication for instantly 
stopping any voluntary fast. 
From the accompanying table it will be seen that the metabolism 
in the present case was much slower than in either Tanner’s or Cetti’s. 
Nor was there any evidence of the same profound disturbance in the 
metabolism which was indicated in Cetti’s case by the appearance 
of acetone in large quantities in the urine. At one period Jacques’ 
urine was observed to have a peculiar smell, suggestive of liquorice, 
but not in the least resembling acetone. Some of this urine was 
distilled, but the distillate was free of any unusual smell. 
Altogether the metabolism here is much more like that observed 
by Yoit in old fat dogs, while Cetti’s case rather resembles the pro- 
cesses as seen in young lean animals. 
Comparison of Tanner , Cetti , and Jacques. 
Tanner. 
Cetti. 
Jacques. 
Weights. 
1st Day. 
71-600 
57*000 
62*008 
10th Day. 
50*650 
56*226 
25th Day. 
60*000 
|52*740 
30th Day. 
51*692 
Loss of Weight per Kilo. Original Body Weight, in Kilos. 
10th Day. 
•111 
•093 
25th Day. 
*162 
*149 
30th Day. 
*166 
Loss of Flesh per Diem (in Jacques' Case, in Average of 3 Days). 
5th Day. 
219 
315 
295 
10th Day. 
270 
168 
18th Day. 
192 
113 
28th Day. 
107 
