378 EXPERIMENT STATIOlSr RECORD. [Vol.43 



Mendelian factors concerned with hair color in horses, J. H. W. T. 



Reimers (Cultura, 29 {1911), Nos. S^S, pp. 2^8-262; 350, pp. 339-354; S51, pp. 

 317-394; 352, pp. 404-4I6). — ^The author siiiiiuiarizes the results of previous in- 

 vestigations and presents' new data derived from the East Friesian and 

 Groningen stud books. Ten factors are recognized, although all are not 

 involved in the niatings tabulated. There appear to be complications in the 

 Inheritance of different shades of brown. 



Poultry feeding [experiments] {New Mexico Sta. Rpt. 1919, pp. 21-24)- — 

 Five pens of 12 White Leghorn pullets were used in a study of cottonseed meal 

 as a constituent of a bran and alfalfa meal mash. In 3 pens cottonseed meal 

 formed, respectively, 50, 25, and 10 per cent of the mash and in the same order 

 37, 82, and 31 per cent of the total nutrients consumed were returned in the 

 form of egg yolk and albumin. However, the check pen receiving no cotton- 

 seed meal or other protein supplement produced edible egg materials whicli 

 weighed nearly 52 per cent of the nutrients consumed, while in the tifth pen 

 where meat scrap formed 25 per cent of the mash (no cottonseed meal) the 

 edible materials returned were 29 per cent of the nutrients consumed. Further 

 work is planned to explain these results. 



In a comparison of different whole grains fed with a mash of bran, alfalfa 

 meal, and meat scrap (2:2:1) it was found that barley ranked first, milo 

 second, wheat third, and corn fourth in number of eggs produced per hen 

 (White Leghorn pullets) and that this order was reversed when eggs produced 

 per pound of feed was considered. 



In a third experiment, with Rhode Island Red pullets, a mash of ground 

 Tornillo beans, bran, cottonseed meal, and meat scrap (2:1:1:1) was found 

 to be as palatable and as efficient in egg production as a standard mash of 

 bran, corn chop, alfalfa meal, and meat scrap (1:1:1:1). 



Soil contamination [in poultry yards], H. E. Upton {Brit. Cohimhia Dcpt. 

 Agr., Circ. Bid. 26 {1920), pp. 3, fig. 1). — To avoif^the transmission of parasites 

 to young chickens through accumulated jwultry manure, the author suggests 

 a rotation system whereby the young stock is raised on a particular area only 

 once in three years. 



Rabbit raising, N. Dearborn {U. S. Dept. Agr., Farmers' Bui. 1090 {1920), 

 pp. 34, figs. 22). — These pages include brief characterizations of the utility 

 breeds of rabbits, notes on the breeding, feeding, management, and marketing 

 of rabbits, directions for preparing rabbit skins, and suggestions for combating 

 disease. A section on cooking rabbit meat is noted on page 3G5. 



DAIRY FARMING— DAIRYING. 



A study of Guernsey breeding, R. R. Graves {Hoard's Dairiimitn, 59 {1920), 

 No. 17, pp. 1068, 1069, 1072, fig. i).— This is a progress report on statistical 

 studies of Guernsey advanced registry records, undertaken by the Dairy Di- 

 vision of the U. S. Department of Agriculture for the purpose of determining the 

 hereditary qualities of the " best " sires of the breed. 



Advanced registry testing, H. P. Davis {Idaho Sta. Circ. 9 {1919), pp. 11). — 

 A summary of breed requirements for advanced registry, with instructions for 

 owners who desire tests made :md for supervisors of tests. 



Studies in the cost of milk production. — II, F. T. Riddell and A. C. 

 Anderson {Michigan Sta. Bui. 2S6 {1920), pp. 37, figs. 6). — As part of the series 

 of cost of production studies in Michigan dairying centers, begun with Bulletin 

 277 (E. S. R., 37, p. 474), the authors report cost data collected near Howell, 

 Livingston County, and near W^ebberville, Ingham County, during 3 and 2 



