ANIMAL PRODUCTION. 75 



ItMijith. Analyses (proxinuite and ash) are ])riefly reported, as well as di<restion 

 experiments by artificial methods and with a healthy man. The average coefticients 

 of digestil)ility nf eoeoa were: Dry matter 90, protein 80, fat 100, and ash 100 per 

 cent. Twenty gm. of cocoa were fonnd to l)e more thoroughly digested than a larger 

 amount (00 gm.). 



The author also studied tlu' i-ffect of consuming different (juantities of cocoa on the 

 digestibility of milk. When milk was consumed alone, the following coefficients of 

 digestibility were found: Dry matter 91.6, jirotein 93, fat 96, and ash 56.7 per cent. 

 When 20 gm. of cocoa was consumed per 100 gm. of milk, the coefficients of digesti- 

 bility were as follows: Dry matter 92, protein 93.2, fat 96.3, and ash 66.1. When 

 60 gm. of cocoa per 100 gm. of milk were consumed, the corresponding percentages 

 were: Dry matter 90.8, protein 92.4, fat 95.6, and ash 63.1. In other words, the 

 consumption of cocoa with milk increased the digestibility of the latter food. 



Zanzibar carbon, A. L. Winton {Coiinedicat State ISta. Rpt. 1900, pt. 2, pp. 200, 

 201). — This material, which is recommended by the manufacturers for giving the 

 same color as smoke to meats and sausage and for other purposes, was found to con- 

 sist chiefly of a coal-tar color, probably Bismari-k brown, and common salt. An 

 analysis of the material is reported. 



Introduction to the microscopical examination of vegetable foods and con- 

 diments, A. F. W. ScuiMPEK {Anleitang zar iiukroskopwchen Unlcrsuchimg der Vegetabi- 

 lisclicn Nahrungs unci Genussinittel. Jena: J. G. Fischer, 1900, 2. rev. ed., pp. 158, figs. 

 134; rev. hi Oeslerr. Clwrn. Ztg., 3 (1900), No. 20, p. 493).~A handbook. 



Protection of food products from injurious temperatures, H. E. Willia.ms 

 {U. S. Dept. Agr., Farmers' Bui. 125, pp. 26). — A popular summary of information 

 available on the use of cold storage for preserving food products. 



Pure-food la"ws of European countries affecting American exports, W. D. 

 BiGELOW { U. S. Dept. Agr., Diiisiou of Chendstry Bid. 01, pjp. 39). — A comprehensive 

 summary. 



The imperial meat-inspection la^w {U. S. Dept. Agr., Bureau of Animal Industry 

 Circ. 32, pp. 19). — The German text and English translation of the new imperial 

 German meat-insiH'ction law. 



Literature along domestic science and household economic lines, Minxie 

 A. N. Stonek {Industrialist, 27 {1901), No. 15, pp. 189-194)- — The article contains a 

 bibliograpliy. 



Bibliography of domestic economy, R. K. Shaw {Nen^ York State Library Bid. 

 52, Jan., 1900, pp. 170). — An extended bibliography of the literature of domestic 

 economy. Only works printed in England are included. One of the sections refers 

 to food, cooking, etc. 



ANIMAL PRODUCTION. 



Condimental and medicinal cattle and poultry foods {('onuectirnt State Sta. 

 Bid. 132, ])]). 7). — Analyses are reported of 15 samples of condimental and medicinal 

 cattle and poultry foods. As is pointed out, these foods consist of ordinary concen- 

 trated foods such as corn meal, linseed meal, and sucii drugs as ginger, fenugreek, 

 sulphur, charcoal, salt, Epsom salts, and gentian. In proportion to the cost of the 

 materials, the i)rices asked for these materials are very high, and there is no reason to 

 suppose that the effect they produce is at all proportionate to the claims nuifle for 

 them. 



Feeding stuffs, R. J. Davidson ( Vir(jinla Sta. Bid. 107, pp. 211-233). — In addi- 

 tion to a gi'iicral iliscussi(jn, the author reports the analyses of a number of samples 

 of cotton-seed meal, cotton-seed hulls, linseed meal, bran, mi<ldlings, shorts, mill feed, 

 corn meal, dried l:«-ewers' grain, pea meal, gluten meal, ship stuff, and a number of 

 mixe<l and condimental feeds. 



Computation of rations, A. M. Soule ( Univ. Tennessee Record, 4 {1001), No. 1, pp. 

 44-51, figs. 3). — Practical directions are given for computing rations. 



