1104 EXPEEIMENT STATION RECORD. 



a greater or less degree; it is necessary to state the exact amount of variation so far 

 as it can be measured, and the proportion of cases in which it occurs, in order to 

 make it possible to determine the degree of importance of any variation in tlie 

 development of the species. 



The author critically discusses the recent work of Bateson, de Vries, Poulton, 

 Weldon, Vines, and many other writers, including the theory of variation proposed 

 by Mendel. 



Practical manual of animal feeding, R. Dumont {Manuel pratique de ('alimenta- 

 tion du hetail. J'aris: J. B. Badlih-e ct So)i, 1903, pp. 360). — This volume, which is 

 one of the Bibliothtnjne des ('onnaissances Utiles, includes the general principles of 

 animal feeding, feeding stuffs and their digestibility, and the practical feeding of 

 farm animals, a number of tables of the composition of feeding stuffs, etc., being 

 appended. 



The inspection of feeding- stuffs in 1902, F. W. Morse {Nexv Hamp.^hire Sta. 

 Bid. 9S, pp. 1.5-23). — In carrying out the i»rovisions of the State feeding stuff law, 

 which is quoted, analyses were made of 57 samples of cotton-seed meal, linseed meal, 

 gluten meals and feeds, hominy meal, commercial feeds, and cereal breakfast food 

 by-products, ])oultry feeds, meat and bone mea,ls, and calf meal. According to the 

 author, the results of the analyses showed a satisfactory condition as regards (juality, 

 since "there are but few serious deficits in the goods as guaranteed." 



Using- vine prunings and grape marc with, molasses for making molasses 

 feeds, b. ( iiiANDKAr {Jour. .[ijr. Prat., u. .sfc, .5 {1903), Xo. 9, jiji. 277, ~'7S). — Data 

 are quoted regarding the nutritive value of vine prunings and grape marc, which led 

 to the deduction that sui-h materials combined with molasses would make satisfac- 

 tory feeding stuffs. 



Industrial by-products used in the manufacture of molasses feeds, L. 

 GR.\NDE.\n {Jour. A<ir. Prat., n. ser., 5 {1903), Xo. 1, pp. .9-//).— This article is IjuschI 

 on experiments n^ported by (). Kellni'r. (See below.) 



Preparation and use of molasses bread for cattle feeding, G. M.\let {Bl. 

 ZAiclcerruhenhan, 9 {1902), No. 19, pp. 295-299). — Molasses bread for honses and for 

 cows is described and the composition of the 2 sorts quoted. An experiment is also 

 reported which, according to the author, shows that molasses bread to the amount of 

 3 kg. may form a part of the ration of horses. With cows it was found that molasses 

 bread caused gains in weight ])ut exercised no influence upon the quality or quantity 

 of the milk. It is also stated that it facilitated and hastened the fattening of i)igs. 



The keeping qualities of certain peat-meal-molasses feeds, A. IIerzfeld, 

 O. ScnREFELD, and K. Stiepel {Zt.'<chr. Ver. Bent. Zuckerind., 52 {1902), Xo. 554, 

 p. 207; aU. in Cenild. Agr. Chem., 32 {1903), Xo. 4, pp. 2.52-^56).— Experimental 

 data are reported and dist-usscd. 



Experiments on the digestibility of a number of materials used as absorb- 

 ents in molasses feeds, (). Kellner et al {Deut. Landw. Presse, 29 {1902), No. 103, 

 p. 832; ahx. in Centhl. Agr. Chem., 32 {1903), No. 4, pp. 2.33-2.35 ).— In experiments 

 with sheep the digestibility of mowrah meal, coffee hulls, peanut shells, and cocoa 

 hulls was studied. 



The protein of ground whale flesh, A. Kavli {Norsk Landmand.sblad, 21 {1902), 

 pp. 2S1, 282; abs. in Centhl. Agr. Chem., 32 {1903), No. 2, pp. 120-122).— The author 

 has reported an extended study of the composition of the nitrogenous constituents of 

 ground whale flesh, a concentrated feed extensively used in Norway, esi)ecia]ly for 

 milch cows. 



The energy of growth and the lecithin in decoctions of cereals, M. Sf^ringer 

 {L'energie de croissance et les lecitlnnes dann les decoctions de cercales. Paris: Ma.s.mn ct 

 Co., pp. 170). — The author believes that lecithin plays an important part in the 

 growth of animals, and in this volume, which is one of the series Encyclopedic Sci- 

 entifique des Aide-Memoire, he has gathered together the results of numerous inves- 



