870 EXPERIMENT STATION RECORD. 



when the heu is fed inorganic phosphorus. Hens on range do not i)roduce eggs 

 different in composition from those on bare yard. 



" There is a variation in the eggs of individual hens in the content of protein 

 and in the content of fat, Ijut the eggs produced l)y each individual are quite 

 constant in composition. The sum of the percentiige of the fat and of the 

 protein in eggs varies but little. In feeding a ration high in fat, or a ration 

 high in protein, there is no material change in the characteristics of the hen 

 as regards the amount of fat and protein in the egg. There seems to be no 

 relation between the protein or fat content of the egg as regards its hatching 

 power or the vigor of the young chiclj." 



An abnormal hen's egg', F. E. Chidester (Amer. Nat., Jf9 {1915), No. 511, 

 pp. 49-51, figs. 2). — (V description is given of a "gourd-shaped" egg having a 

 constricted yollc surrounded by apparently normal albumin. This particular 

 abnormality is tliought to have been caused by a constricted oviduct rather than 

 from the fusion of two eggs during apposition, induced by antiperistalsis. 



The interior quality of market eggs, E. W. Benjamin {New York Cornell 

 Sta. Bui. 353 {1914), pp. 46, pU. 8, figs, i^).— Topics discussed in this bulletin 

 are the physiology of egg production; the structure of the normal egg; the 

 interior quality of a normal fresh egg ; the internal and external factors affect- 

 ing the interior quality of eggs; and suggestions to producers, dealers, and con- 

 sumers. A bibliography and several colored illustrations of market eggs are 

 included. 



The community egg circle, C. E. Bassett and W. H. Kebr ( U. S. Dept. Agr., 

 Farmers' Bid. 656 {1915), pp. 7). — This bulletin contains general information 

 on cooperative egg marlieting and gives forms for use in organizing, managing, 

 and auditing a community cooperative egg association. 



Sodium silieate as an egg preservative {Minnesota Sta. Rpt. 1914, PP- 26, 

 21). — It is concluded from two seasons' work that eggs are not appreciably 

 affected within a much larger range of alkalinity than that exhibited by market 

 samples of sodium silicate solution. Deposition of silicate from solution is 

 dependent upon the exposure to air and the amount of carbon dioxid present. 

 Deposited silicate may be redissolved by boiling with a little lye, and such 

 solutions are equal in every respect to fresh solutions. 



Fur farming in Canada, J. W. Jones et al. {Ottawa: Com. Conserv., 1914, 

 2. ed., rev. and enl., pp. lX-\-218, pis. 28). —A revised and enlarged edition of 

 this work, previously noted (E. S. R., 29, p. 373). 



DAIRY FARmNG—DAIRYING. 



Dairy farming, O. E. Keed {Kansas Sta. Circ. ^5 {1915). pp. 26, figs. 9). — 

 This circular contains general information on the dairy breeds, the selection, 

 feeding, care, and management of the dairy herd, together with directions for 

 making the Babcock test. 



Dairying in Switzerland, W. Wright {Jour. Agr. [New Zeal.], 10 {1915), 

 No. 2, pp. 14O-I4I. figs. 2). — An account of several of the prominent dairy farms 

 and manufacturing concerns of Switzerland, together with a description of the 

 method of manufacturing Emmental cheese. 



On the importance of meadows and pastures for the dairy establishment. 

 O. Laxa {Milclnv. Zentbl, 43 {1914), ^o. 6, pp. 145-153).— The author show3 

 wherein the geological character of the laud influences the mineral content of 

 its vegetation and how in turn this affects the mineral content of the milk and 

 its value for cheese making. It is further shown that although the bacterial 

 content of the milk of pasture-fed cows is much lower than that of stall-fed 



