6 BTJULETXN 1033, U. 5. DEPARTMENT OF AGRICULTURE. 
The food eaten per man per day provided on an average 15 grams 
of protein. 61 grams of fat. and 311 grams of carbohydrate and its 
fuel value averaged 1,860 calories. The average coefficient of digesti- 
bility of the Java-almond oil. which made up over 98 per cent of the 
total fat of the diet, was 97 per cent, So far as may be judged by the 
continued good condition of the subjects, the palatabilifry of the oil. 
and its high digestibility, there is good reason to conclude that it 
compares favorably with other nut oils used in this laboratory. 
TEA-SEED OIL. 
The best grades of tea-seed oil are used to some extent for food 
purposes in China and have been found as an adulterant of cabbage 
oil. The Chinese use poorer grades for burning and for soap making. 
That used in the tests here reported was a commercial product of e 
pale yellow color and bland flavor. 
The fitness of this by-product oil for food has been questioned on 
the ground that, as saponin has been found in it. it may be harmful. 
Hooper 10 reports 9 per cent saponin in tea seed and states that some 
is always dissolved by the oil. Weil " states that oil made by extrac- 
tion contains no saponin. The oil used in the present experiments 
was examined for saponin in the Pharmacological Laboratory. Bu- 
reau of Chemistry, with negative results. 
The experiment was begun with three subjects, who ate some -10 
to 50 grams of the oil per man per day. Owing to the accidental loss 
of some of the feces m the case of two subjects, complete data are 
available from only one person. The available results are summarized 
in Table 3. 
Table 3. — Data of digestion experiments with tea-seed oil in a .simple mixed diet. 
rieestibilitr of entire ration. _. 
Pigesti- 
Experiment No. 
Subject. 
Protein. 
Carbo- tea-seed 
FaT - hydrate. Ash " oil alone - 
1004 
Per cer,t. Per cent. Per cent. Per cent. Per cent. 
J. F. C 47.2 >>.2 9>.4 12.1 91.2 
The daily food of the subject for whom the experimental data are 
complete, provided on an average 9 grams of protein. 50 grams of 
fat. and 20-1 grams of carbohydrate, and its fuel value averaged 
1.300 calories. The average amount of tea-seed oil eaten daily was 
49 grams. The subject remained in his usual good health and suf- 
fered no noticeable physiological disturbances. This was equally 
10 Pharm. Jour, and Trans. [London]. .'.. ser., 25 (1895), No. 1UM'. p. 605. 
"Arch. Pharm., -jr.'.' (1901 I, No. 5, pp. 365. 
