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. 



1,807.0 



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 

 3.0 



Fruit 







:;::;;:;;i: 







::::::::::::::::" 













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. K.: 



Blancmange containing hickory-nut oil . . . 



2, 327. 

 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 



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 





6.2 







12.9 















79.7 



97.1 



98.1 



67.5 











Experiment No. 603, subject J. C M.: 



Blancmange containing hickory-nut oil . . . 



1,796.0 

 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 



Feces 



8.5 







5.6 















1 



64.2 



96.5 



96.4 



39.7 









Experiment No. 604, subject C. J. W.: 



Blancmange containing hickory-nut oil . . . 



2, 213. 

 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 

 5.7 



Fruit 



2.9 

















Total food consumed 



3,230.0 

 81.0 



1, 527. 2 



89.8 

 26.7 

 63.1 



316.4 

 10.1 



206.3 



1, 279. 6 



37.1 



1,242.5 



17.0 





7.1 







9.9 

















70.3 



96.8 



97.1 



58.2 











Averagef ood consumed per subject per day. . . 



977.1 



460.7 



26.3 



96.9 



388.2 



5.0 



