FOODS ANIMAL PRODUCTION. 981 



Respiration experiments -with a corpulent subject, A. Schattenfroh (ArcJi. 

 Ili/y., .).y ( I'MO), Xo. ,1, pp. f/.l-ll.)', fii/s. ,/). — The respiratory quotient was determined 

 under a number of conditiouH of work and rest. 



Man's power of accommodation to high and low temperatures, M. Rubnek 

 {Arch. Hyg., 38 {1900), No. £, pp. 120-147).— A study of the effect of climate on man. 

 The respiratory quotient was determined, and in some cases the excretion of nitrogen 

 in the urine. The effect of alcohol on carbon dioxid and water excretion at high 

 and low temperatures was also studied. 



Comparative experiments on the activity of the skin of Europeans and 

 negroes, together w^ith observations on diet in warm climates, M. Riibnek 

 {ArcJi. Ihjtj., 3S {IfiOO), Xo. ..\ jip. 14S-159). — Respiration experiments, in which 

 the production of carl)on dioxid and water was measured, are reported with a 

 negro and a European. On the basis of these experiments and theoretical consid- 

 erations deductions are drawn regarding the kind and aiiKjunt of food required in the 

 Tropics. 



Contribution to our know^ledge of proteid metabolism in children, F. W. 

 TuNNECLiFFE and O. Rosenheim {Briti.^lt Med. Jour., 1900, Xo. 2076, pp. 1083-1088, 

 dgms. 3). — A comparison as part of a simple mixed diet for young children was made 

 of milk, meat, and "plasmon," a food product prepared from the precipitated casein 

 of milk. The balance of income and outgo of nitrogen was determined, and in one 

 case that of phosphorus. Food, urine, and feces were analyzed. The principal con- 

 clusions follow: Plasmon can replace meat in a mixed diet for children in 23ro])ortion 

 to its nitrogen content. The phosphorus of plasmon can be assimilated and retained. 

 Greater gains in weight were made during the plasmon period than during the meat 

 period in the three experiments reported. 



The sweet potato (Ipomaea batatas), L. Boxxix {Rer. Cult. ColonUths^, 7 {1900), 

 No. 66, pp. 709-711). — A note on the feedine value of the sweet potato. Chemical 

 analyses of sweet-potato flour and other products with their nutritive ratios are 

 given. 



Investigation of California cattle foods, M. E. Jaffa {California Sta. Rpi. 1898, 

 pp. 131-136). — The composition is reported of sugar-beet leaves, crowns and tops, 

 foxtail hay {Eriogonum parvifolium), corn meal, wheat bran, wheat middlings, shorts, 

 mixed feed, rolled barley, rice hulls, rice, and pine nuts, as well as the protein content 

 of dried blood, bean meal, and macaroni flour. 



Glycogen formation after inulin feeding, R. Nakaseko {simer. Jour. Physiol., 

 4 {1900), Xo.o, pp. 246-250). — According to the author's experiments and those of 

 other investigators which he cites, "the glycogen-forming properties of iiuilin, in 

 the case of the rabbit at least, nuist still be regarded as uncertain or minimal." 



The behavior of certain artificial hexoses, A. Mtjxcn {Ztschr. Physiol. Cliem., 

 29 {1900), Xo. 6, pp. 493-516). — Experiments with rabbits and dogs showed that 

 formose, methose, and methyl glycosid served to induce a storage of glycogen in the 

 liver. 



The source of fat in the animal organism {Dietet. and Hyg. Gaz., 16 {1900), 

 No. 9, pp.529, 530). — The possibility of the formation from fat of j>rotein is dis- 

 cussed. 



Can unsaponified fat be resorbed? L. Hofbauer {Arch. Physiol. [Pfilger^, 81 

 {1900), Xo. 4-5, pp. 263-266) . — Experiments with dogs fed fat, artificially colored, led 

 the author to conclude that unsaponified fat can be resorbed in the intestine. 



On the resorption of artificially colored fat, E. PpLtJGER {Arch. Physiol. 

 [Tyiuger], 81 {1900), No. 8-9, pp. 375-380).— \ controversial article. The author 

 believes that Ilofbauer's deductions are not warranted by the experimental evidence. 



The influence of food and fasting upon animal heat {Dietef. and Hyg. Gaz., 16 

 {1900), No. 8, pp. 463, 464) ■ — A general discussion of the subject with a citation of 

 some of Mosso's experiments. 



