1904 - 5 .] A Study of Three Vegetarian Diets. 
501 
The more noteworthy points about this study were : — 
1. The extreme smallness of the diet. The caloric value of it 
was only about one-fourth of the normal diet for moderate labour, 
and the proteid value was only about one-twentieth of the normal. 
2. The urine was alkaline throughout the entire period. It 
was more strongly so on the third, fourth, and fifth days than on 
the first two days. This alkalinity was due to the food being 
purely vegetable. 
3. The excretion of nitrogen was very similar to that found in 
total starvation. Of the total nitrogen, only 80 per cent, was 
excreted as urea, a proportion less than the normal. The total 
amount of non-urea nitrogen was less than the normal, but was 
relatively not so much reduced as was the excretion of nitrogen 
in urea. 
4. The excretion of preformed ammonia was very small. This 
may he ascribed to the presence of excess of alkali and to the 
comparative absence of organic sulphur in the food. 
5. The nitrogen balance was decidedly negative, and indicated 
a daily average loss of 19' 8 grms. of tissue proteid, or about 100 
grms. of flesh. 
Study II. 
The subject was a woman aged forty-two, a typist, who had for 
a long time been a modified vegetarian. The study was made at 
the same time and in the same way as our studies of the diets of 
the labouring classes of Edinburgh. She stated that she was 
strong and well, and able for a large amount of exercise, that she 
habitually bicycled and walked long distances. She always sat 
with the window of her room open, and did not feel cold. The 
study extended over a period of one week. 
The food she used during the period was as follows : — Butter, 
20 oz. ; milk, 60 oz. ; eggs, 8 ; cream, 10 oz. ; cheese, 3 oz. ; 
bread, 32 oz. ; brown bread, 22 oz. ; cakes and pastry, 50 oz. ; 
chocolate cream, 2 oz. ; sugar, 13 oz. ; jam 11 oz. ; potatoes, 46 
oz. ; fresh vegetables, 24 oz. ; prunes, 16 oz. ; bananas, 21 oz. ; 
oranges, 29 oz. ; and apples, 8 oz. 
The food principles in such a diet are estimated by us to 
amount per week to: proteid, 406*5 grammes; fat, 896*1 
