268 EXPERIMENT STATION RECORD. [Vol.40 



such an extent that 00 per cent of the caloric value of the diet was derived 

 from the carrots. When used as an exclusive diet, and supplemented by cal- 

 cium, phosphorus, sodium, and chlorin, carrots were able to support animals 

 in apparent good health for as Long as 1G weeks, although no growth took 

 place. On reduction of the proportion of nitrogen by the addition of some 

 nonnitrogenous foodstuff, such as fat or starch, dropsy occurred among many of 

 the rats. The growth curves indicated the presence in carrots of a considerable 

 amount of both water-soluble and fat-soluble vitamins. 



Experimental researches on the food value of raw, sterilized, and decorti- 

 cated corn, E. Weill and G. MoriugiwND (Compt. Rend. Soc. Biol. [Paris], 80 

 (1917), No. 8, pp. 872-375). — Feeding experiments with pigeons are reported 

 which show the high food value of raw whole corn, the destructive action pro- 

 duced by sterilization and decortication of the corn, and t lie dystrophic action 

 in certain cases of decorticated corn on cutaneous nutrition. These results are 

 in agreement with those previously obtained with other grains (E. S. R., 35, 

 p. S61). 



Report upon the food value of the groundnut, It. L. M. W.u.r.is (Italian 

 ■four. Med. Research, 6 (1918). No. 1. pp. J/6-55). — This article discusses the 

 manufacture and composition of a preparation, "nutramine," obtained from 

 the groundnut or peanut, the utilization of the substance in the preparation of 

 food products, and economic considerations in regard to the peanut industry. 

 Nutramine Is the Clour prepared by warming the press cake obtained after the 

 Usual extraction of araehis oil from the peanut and subjecting it to another ex- 

 traction in the hydraulic press. By this means only about 5 per cent of the oil 

 remains in the press cake, and the resulting flour is said to have Inst the 

 peculiar peanut taste. Tt is of high protein content, the protein being rich in 

 lysin but deficient in tryptophan. This deficiency may be made up by mixing 

 the flour with casein or dried milk. 



Relative digestibility of maize oil (corn oil), cottonseed oil. and lard, 2S. W. 

 RocKwoon and P. B. Sitickss (Jour. Amer. Med. Assoc., 71 (Wis). .\"o. 20. pp. 

 Wt'i'.K 1650). — Asa result of metabolism experiments on three dogs the following 

 percentages of Cats metabolized were obtained. Corn oil 98.9, cottonseed oil 

 98.8. and lard 97.8. 



The authors state that other experiments show that corn oil can be well sub- 

 stituted for other animal and vegetable oils in salnds and for "shortening" in 

 cooking wheat foods. 



Utilization of blackberries, A. Tbubxxe (Vie Agr. ei Rurale, S (1918). No. 

 39, pp. 222-22.'/). — The chemical composition, food value, and use of blackberries 

 are discussed, and methods are described lor the preparation of blackberry 

 conserves, sirups, jellies, and marmalade. 



Some preparations of coffee proposed for the Army. Baj t \nd (Compt. Rend. 

 Acad. Sci. [Paris], 167 (1918), No. 12. pp. ',.'■■ 125; ooa. in Clion. .16*'.. 12 

 (1!>1S), No. 23, p. 2638). — Descriptions and analyses are reported of certain 

 coffee preparations proposed for army use, tncludii e extracts, tablets, 



and the silver skin obtained in roasting the coffee. 



Investigations in regard to the reaction of human milk. A. Szili (Diochem. 

 Ztschr., 84 (1917), No. 8-4, pp. l'H-200; abs. in Clicm. Abe., 12 (1918), No. l!f, 

 p. Uf82). — Tables are uiven of the hydrogen-ion concentration of various 

 samples of human milk and of the acidity as determined by neutralization 

 with O.nO X sodium hydroxid, using phenolphthalein as an indicator. 



The hydrogen-ion concentration was found to he almost exactly that of water, 

 and did not change appreciably during the course of lactation. The milk in the 

 latter stages of lactation required somewhat less alkali than in the earlier 

 stages for neutralization to phenolphthalein. 



