DIGESTIBILITY OP SOME BY-PRODUCT OILS. 
sessed the essential characteristics of a salad oil and mixed with 
vinegar formed a very agreeable salad dressing. In order that the 
coefficient of digestibility obtained should be directly comparable 
with those for other fats in this series, the apricot oil here used was 
incorporated in a blancmange rather than used in the form of a salad 
dressing ; but there is no reason to suppose that the difference in the 
manner of use would make any appreciable difference in the di- 
gestibility. 
The following tables contain the essential data for interpreting the 
results of the digestion experiments with apricot oil : 
Data of digestion experiments tcith apricot oil in a simple mixed diet. 
Weight 
of food. 
Constituents of foods. 
Experiment, subject, and diet. 
Water. 
Protein. 
Fat. 
Carbo- 
hydrate. 
Ash. 
Experiment No. 559, subject H. R. G.: 
Blancmange containing apricot oil 
Grams. 
1,443.0 
369.0 
442,0 
Grams. 
664.5 
33.2 
384.1 
Grams. 
24 .4 
39.1 
3.5 
Grams. 
155.3 
5.5 
.9 
Grams. 
588.0 
285.3 
51.3 
Grams. 
10.8 
5 9 
Fruit 
2 2 
Sugar 
2,254.0 
82.0 
1,081.8 
67.0 
24.1 
161.7 
8.5 
924.6 
43.5 
18 9 
5 9 
42.9 
64.0 
153.2 
94.7 
99.7 
881.1 
95.3 
13 
Digestibility of entire ration (per cent) . . 
68.8 
Estimated digestibility of oil alone (per 
Experiment No. 560, subject A. J. H.: 
Blancmange containing apricot oil 
1,748.0 
18.0 
103.0 
32.0 
805.0 
1.6 
89.5 
29.5 
1.9 
.8 
188.1 
.3 
.2 
712.3 
13.9 
12.0 
32.0 
13.1 
3 
Fruit 
5 
1,901.0 
79.0 
896.1 
32.2 
27.3 
188.6 
14.6 
770.2 
29.8 
13 9 
Feces 
7 3 
Amount utilized 
4.9 
15.2 
174.0 
92.3 
96.4 
740.4 
96.1 
6 6 
Digestibility of entire ration (per cent) . . 
47.5 
Estimated digestibility of oil alone (per 
cent) 
Experiment No. 561, subject P. K.: 
Blancmange containing apricot oil 
2,133.0 
371.0 
714.0 
111.0 
982. 3 ' 
33.4 
620.5 
36.0 
39.3 
5.7 
229.5 
5.6 
1.4 
286^8 
82.8 
111.0 
16.0 
5 9 
Fruit 
3 6 
3,329.0 
77.0 
1,636.2 
81.0 
26.3 
236.5 
10.9 
1,349.8 
33.6 
25.5 
6 2 
54.7 
67.5 
225.6 
95.4 
98.6 
1,316.2 
97.5 
19.3 
Digestibility of entire ration (per cent) . . 
75.7 
Estimated digestibility of oil alone (per 
Experiment No. 562, subject C J. W.: 
Blancmange containing apricot oil 
Wheat biscuit 
2,224.0 
429.0 
937.0 
72.0 
1,024.1 
38.6 
814.2 
37.6 
45.5 
7.5 
239.3 
6.4 
1.9 
906.3 
331.6 
108.7 
72.0 
16.7 
6.9 
Fruit 
4.7 
95.0 
30.5 
12.2 
45.3 
Feces 
7.0 
60.1 
66.3 
235.4 
95.1 
98.8 
69.5 
1,373.3 
96.8 
21.3 
75.3 
Estimated digestibility of oil alone (per 
Average food consumed per subject per day. . 
928.8 
457.6 
22.6 
371.9 
7.2 
