DAIRY FARMING DAIRYING. 271 



Inheritance in poultry, C. B. Davenport (Washington: Carnegie Institution 

 (if W'uslihigttiii, I'JDiJ. pp. J36, pis. 17, figs. //). — An elaborate series of experi- 

 ments in poultry breeding carried on at the Cold Spring Harbor Station for Ex- 

 perimental Evolution led to a n\mil)er of general conclusions from which the 

 following are quoted : 



" Poultry exhibit numerous unit characteristics wliich do not blend in hybri- 

 dization, but are iniierited in alternative fashion. Tho. unit characters are not 

 innnutable thing-; in hybrids, but subject to modification — ]»erhaps i)(>rmanent — 

 by interaction of the alternative' characlers. 



"Although the great majority (jf characteristics of poultry are inherited alter- 

 natively, yet a few cases of color characters show a particulate inheritance. 

 The comparative rarity of blending of characters makes it easier to see how 

 new characters will not be ' swamped by intercrossing with the pai'ent form.' 



" Specific and varietal characteristics in de Vries's sense are not inherited in 

 .•I markedly different fashion, although in 2 cases jn'ogressive variants do not 

 Mendelize typically. 



" The patent characteristic is usually dominant dver its latent allelomorph. 

 Old and new characteristics are equally dominant. Dominance and recessive- 

 ness of characteristics are not always accompaniments of their segregation in 

 the germ cells ; both, moreover, are fn^iuently incomplete. Dominance is 

 usually, but not always, inde])endent of the races crossed. Prepotency is as 

 truly important in iulHU'ltance as dominance. . . . 



" Reciprocal crosses exhibit differences due to the fact that the father and 

 the mother transnnt different kinds of characteristics. . . . 



" The proportion of the 2 sexes in hybrids is normal. With few excejitions 

 con-elated characteristics easily sejiarate as a result of hybridization so that 

 any conceivable combination may be effected." 



DAIRY FARMING— DAIRYING. 



Feeding experiments with milch cows, ,J. H. Stewart and H. Atwood ( West 

 Virginia Sta. Bui. 106, pp. 335-8't5, pi. 1, fig. 1). — Two experiments are reported 

 in which the economy of feeding more silage and hay and less grain was studied. 

 The first test included 8 cows and lasted 20 days, and the second, 7 cows and 

 lasted 4.5 days. 



"Realizing that definite conclusions can not be drawn in feeding trials of this 

 nature from 2 short tests, yet these experiments indicate that when a dairy- 

 man has plenty of good corn silage it will not be wise to feed more than 5 or 6 

 ll)s. per day of a mixture of cotton-seed meal and wheat bran to cows of the 

 average size employed in this test." 



Dried-beet pulp or molasses-beet pulp for dairy cows, F. W. Woll and 

 G. C. HL•^rI•Ill{EY (Wisconsin Sta. h'pt. 1!)0.'), pp. 1(IS-JJ7). — Brief notes are 

 given on the production of these 2 feeding stuffs and feeding experiments with 

 cows are reported. The ration used for comparison consisted of ."> lbs. of hay. 

 o5 to 40 lbs. of silage, and about 8 Ib.s. of a grain mixture consisting of wheat 

 br.an. distillers' grains, and cotton-seed meal in the proportion of 2 : 2 : 1. Dri<Ml- 

 bt>et ladp or molasses-beet pulp was substituted for the wheat bran in the ratio 

 ot ?>:2 l)y weight. Two tests were made, the first including !."> cows and the 

 (•econd (i. 



When wheat bran was i-eplaced I)y dried-beet pulp in tlie proportion indicated 

 liiere was no appreciable difference in the effect of the 2 rations. Molasses- 

 beet pulj) substituted in the same manner jiroduced. however, about 12 per 

 cent more milk anu S per cent more butter fat. Beet pulp showed a tendency 



