14 
BULLETIN 630, U. S. DEPARTMENT OF AGRICULTURE. 
Since it was impossible to purchase edible hickory-nut oil, a quan- 
tity sufficient for the purpose of this investigation was obtained by 
cold pressing a good grade of nuts purchased in the open market. 
The resulting oil, which was taken to represent average hickory-nut 
oil, was of a pale yellow color, without odor, and had a flavor resem- 
bling somewhat the nuts from which it was obtained. The supply 
of oil was very limited, and so no tests were made of its value for 
table purposes. 
The oil, incorporated in the blancmange in the usual manner, was 
considered only from the standpoint of digestibility, and no attempt 
was made to determine how much of the oil can be used without pro- 
during a laxative effect (limit of tolerance) , though it may be assumed 
that the amount is in excess of that taken in these experiments. The 
data obtained are given in the following table : 
Data of digestion experiments with hickory-nut oil in a simple mixed diet. 
Weight 
of foods. 
Constituents of foods. 
Experiment, subject, and diet. 
Water. 
Protein. 
Fat. 
Carbo- 
hydrates. 
Ash. 
Experiment No. 601, subject A. J. H.: 
Blancmange containing hickory-nut oil 
Grams. 
1, 807. 
190.0 
Grams. 
811.8 
17.1 
Grams. 
38.4 
20.1 
Grams. 
253.0 
2.9 
Grams. 
696.9 
146.9 
Grams. 
6.9 
3 
Fruit 
Total food consumed 
1,997.0 
21.0 
828.9 
58.5 
7.6 
50.9 
255.9 
4.1 
251.8 
843.8 
6.8 
837.0 
9.9 
2 5 
7 4 
87.0 
98.4 
99.2 
74 7 
Experiment No. 602, subject P. X.: 
Blancmange containing hickory-nut oil ... 
Wheat biscuit * 
2,327.0 
402.0 
770.0 
162.0 
1,045.5 
36.2 
669.1 
49.5 
42.6 
6.2 
325.8 
6.0 
1.5 
897.4 
310.8 
89.3 
162.0 
8.8 
6.4 
Fruit 
Sugar 
3.9 
Total food consumed 
3,661.0 
64.0 
1,750.8 
98.3 
20.0 
78.3 
333.3 
9.8 
323.5 
1,459.5 
28.0 
1,431.5 
19.1 
Feces 
6.2 
12.9 
79.7 
97.1 
98.1 
67.5 
Experiment No. 603, subject J. C M.: 
Blancmange containing hickory-nut oil . . . 
Wheat biscuit 
1, 796. 
245.0 
682.0 
114.0 
807.0 
22.0 
592.7 
38.2 
26.0 
5.4 
251.4 
3.7 
1.4 
692.6 
189.4 
79.1 
114.0 
6.8 
3.9 
Fruit 
3.4 
Total food consumed 
2,837.0 
81.0 
1,421.7 
69.6 
24.9 
44.7 
256.5 
8.9 
247.6 
1,075.1 
38.7 
1, 036. 4 
14.1 
8 5 
Amount utilized 
5.6 
Per cent utilized 
64.2 
96.5 
96.4 
39.7 
Experiment No. 604, subject C J. W.: 
Blancmange containing hickory-nut oil ... 
2,213.0 
360.0 
576.0 
81.0 
994.3 
32.4 
500.5 
47.0 
38.2 
4.6 
309.8 
5.4 
1.2 
853.5 
278.3 
66.8 
81.0 
8.4 
Fruit 
2.9 
Total food consumed 
3, 230. 
81.0 
1,527.2 
89.8 
26.7 
63.1 
316.4 
10.1 
306.3 
1, 279. 6 
37.1 
1,242.5 
17.0 
Feces 
7.1 
Amount utilized 
9.9 
Per cent utilized 
i 
70.3 
96.8 
97.1 
58.2 
Average food consumed per subject per day. . . 
9771 
460.7 
26.3 
96.9 
388.2 
5.0 
