ANIMAL PRODUCTION. 775 



During the years in which this has been in operation several changes have 

 been made, the most important of which is the recognition of the half-bred 

 sire of the hunter or Irish draft type. Other changes include the purchase 

 and resale of thoroughbred stallions and the restriction of cart horse stallions 

 to specified districts. A new policy is outlined to prevent the use of stallions 

 suspected of inheritable diseases. Information regarding legislation of conti- 

 nental Europe for the control of live stock breeding is also given. 



Horse raising in Denmark in 1908, J. Jensen (Tidsskr. Landokonomi, 1909, 

 \(>. 7, 1)1). .'i(i'j-.'i2i)). — The article gives the usual annual survej- of the industry. 



Beport of the chief poultry expert, D. D. Hyde {New Zeal. Dept. Agr. Ann. 

 Rl)t., n {1909), PI). 13S-163, ph. 3).— This is the usual annual report of the 

 poultry industry of New Zealand. An experiment is reported as to the cost of 

 rearing chicks 5 mouths of age, in which the average cost per bird for that 

 length of time was Is. llgd. The average weight of food consumed per bird was 

 27 lbs. The use of the open-air system of housing proved satisfactory. There is 

 a discussion of the causes of mortality of chicks during incubation, aiad other 

 related matters. 



The selection and feeding of laying hens, A. G. Philips {Kansas Sta. Bui. 

 ICiJf, pp. 277-291, figs. Ji). — This bulletin contains advice on the selection of lay- 

 ing hens and methods of feeding for egg production. Two stjies of feed hop- 

 pers are illu.strated and described. 



A triple-yolked egg, R. Pearl {Zool. Anz., 35 {1910), No. l-'/-15, pp. Jfl7- 

 'i23, figs. 2). — This is a descrii)tion of an egg laid by a liarred Plymouth Rock 

 pullet and containing .3 yolks. Each of the yolks was of normal size, possessed 

 a germinal disc, and was enclosed in a separate yolk membrane. The yolks 

 were in no way fastened together and there was no trace of a chalaza. The 

 shell membranes were normal. 



Hens that feed themselves, A. F. Hunter {Riirnl New Yorker, 69 {1910), 

 No. 'i039. pp. 377, 378, fig. 1). — The author reports successful results from feed- 

 ing a dry mash, with the special claim that the labor for caring for the fowls is 

 reduced nearly one-half without decreasing the egg yield. 



Electric incubators and brooders, F. E. Ward {Sci. Atncr., 102 {1910), No. 

 10, pp. 20.'i, 205, figs. 5). — Details are given for constructing an inexpensive 

 homemade electrically heated incubator holding .10 eggs, and for making two 

 styles of electrically heated brooders. 



Animal husbandry in Denmark, 1908, with special reference to cattle 

 raising and dairy husbandry, A. Appel {Tidsskr. Landijkonomi. 1909, No. 7, 

 pp. 337--'i0',; Malkcritid.. 23 (1910). No. 3, pp. 51-67).— X general review. 



Live stock guaranties in Switzerland, H. Woker {Die Gewdhrlcistung fiir 

 Mangel und Zugesirlicrte Eigcnschaften helm Sehtrrizerischen Tiehandel. 

 Inaug. Diss., Univ. Bern, 1909, pp. l-'f6). — This contains a history of the methods 

 of warranty which have been practiced in the Swiss live stock trade. Sug- 

 gestions are offered for their improvement and unification that would be more 

 advantageous to both buyer and seller. 



Number of animals slaughtered and total receipts during fiscal year 1909 

 {U. 8. Senate, 61. Cong., 2. Session. Doc. Ji28, pp. 27). — Statistics showing the 

 number of animals slaughtered during the fiscal year 1909 at the establishments 

 in the United States operating under federal inspection are presented. 



Composition of forage in highland prairies and mountain pastures, C. 

 Dusserre {Ann. Agr. Suisse. 11 {1910), No. 1, pp. 5-8).— Analyses of pasture 

 grasses taken at different altitudes in the Alps are reported. The range of the 

 different constituents is as follows : Protein from 9.7 to 15.1 per cent, fat from 

 2.9 to 6.8 per cent, and carbohydrates from 30.9 to 47.6 per cent. 



