FOODS — nutritio:n^, 477 



The slight acidity of the bread, after extraction witli ether and water, according to 

 the author, may be referred to proteids present. Provided bread was cooled and 

 covered, the acidity did not increase on standing. Methods of estimating the acidity 

 of bread are discussed. 



Concerning' the diflferences in composition of low and high milling products, 

 L. LiNDET [Jour. Pharin. et Chwi., 6. i^er., 14 {1901), pp. 433-4o7; aba. In Ztschr. 

 rntcrsurh. Xahr. ii. OenussmfL, n { 190-2) , No. 14, pp. 66.5, 666). — On the basis of the 

 data reported, high milling is, uccurding t<i the author, preferable to low milling. 



Some methods of estimating the value of flour, P. G. Ivanov {Tnaug. i)i.ss., 

 St. Petersburg, 1901; abs. in Ztsckt: Untersuch. Nahr. u. Genussmtl., 5 {1902), No. 14, 

 p. 666). — The comparative value of different methods of examining milling products 

 was studied. 



Bananaflour {Xouceaux Remedes, 17 {1901), p. 121; Chern. Ztg., 2,5 {1901), Repert., 

 j>. lit!; (ib.<t. in Ztschr. Untersuch. Nahr. n. Genussmtl., 5 {1902), No. 14, }>• 667). — An 

 analysis of flour made from Jamaica bananas is quoted. 



Yams (Ipomcea batatas), L. Bonxin {Bnl. Assoc. Cltitn. Sucr. ct Distill., 18 {1900), 

 pp. 1028, 1029; abs. in Ztschr. U)di>r.vich Nahr.u. Genussmtl., 5 {1902), No. 8, p. 368). — 

 The chemical composition of yam flour, the vines, and residue from the manufacture 

 of yam starch is reported. The vines are used as a feeding stuff for milch cows. 



The leg-al regulations governing the sale of edible fungi in the Munich 

 markets, K. Giesexhagex {Ztschr. Untersuch. Nahr. u. Genussmtl., 5 {1902), No. 14, 

 pp. .593-603). — Kegulations governing the sale of edible fungi are discussed. 



Estimating the value of fig coffee, O. von Czadek {Ztschr. Landw. Versuchsw. 

 Oesterr., 5 {190?), No. .5, ;*//. 761-7G.i). — Analytical data are reported and discussed. 



Do the volatile bodies of tea and coffee affect the respiration of man? K. B. 

 Lehmaxx and G. Kohker {Arch. Hyg., 44 {1902), No. 3, pp. 203-213).— So far as 

 could be observed in experiments which are reported in full, neither tea nor coffee 

 distillate had any noticeable or lasting effect upon the rate of respiration. 



Experiments on the effect of muscular work upon the digestibility of food 

 and the metabolism of nitroge-n, C. E. Wait ( U. S. Dept. Agr., Office of Experi- 

 ment Stations Bid. 117, pp. 43). — Continuing earlier work (E. S. R., 13, p. 72), a num- 

 ber of experiments on the effect of muscular work on the digestibility of a mixed 

 ration and the metabolism of nitrogen are reported. Under the experimental con- 

 ditions neither factor was influenced by the muscular work performed. The author 

 also studied the possibility of determining the composition of a simple mixed diet 

 from the analysis of composite samples of it, the results obtained being favoral)le to 

 this method. 



The physiological effects of route marching, N. Zuxtz and ScHrMBrRCi {Physi- 

 ologie des Marsches. Berlin: August Hirschvald, 1901, jip. XVI-\- Villi- 361, pi. l,figs. 

 46). — To study the physiological effects of marching, a large number of experiments 

 were carried on with 5 military students over a course of 24.75 kilometers, the maxi- 

 mum load which they carried being 31 kg. 



The effect of muscular exertion (motion of f()rward progression and in addition 

 carrying a load) upon the action of the heart, upon the liver, the condition of the 

 l)lood, the vital capacity of the lungs, the elimination of nitrogen by the skin and 

 kidneys, and the metabolism of nitrogen was studied, as well as the respiratory quo- 

 tient. It was found that the elimination of nitrogen l)y the skin and kidneys was 

 not markedly increased by the marching. When an increase did occur it was most 

 noticeable on the day following that in which the muscular work was performed. 

 The average amount of nitrogen eliminated in the perspiration was found to be 

 0.284 gm. per liter, the amount of nitrogen diminishing as the amount of perspiration 

 increased. Marching had little effect upon the composition of the feces and the 

 digestibility of the food, which consisted of a simj:)le mixed ration. In the tests in 



