66G 



wood iislies, wool waste, marl, peat, muck, phosphate rock, iron ore, 

 "germiiiator," cream of tartar, "fruit-preserving powder," driuking 

 waters, and Hostetter's stomach bitters ; a popuhir explanation of terms, 

 and of fertilizer valuation ; the trade values of fertilizing ingredients; 

 a comparison of the average money value of the fertilizers licensed in 

 1888 and 1889; the text of the Vermont fertilizer law; and a list of 

 manufacturers complying with the law in 1889. 



Abstracts of bulletins (pp. 42-50). — xlbstracts are giveu of 

 Bulletins Is^os. 15, 16, and 17, of the station, on the effect of fertilizers 

 on the composition of corn, analysis of hay, testing milk at creameries, 

 and test of dairy cows at the Vermont State Fair (See Experiment Sta- 

 tion Record, Vol. I, pp. 156 and 320). 



Feeding tests of milch cows, J. L. Hills, B. S. (pp. 51-84). — 

 This is an account of an experiment made with live cows to test the 

 relative feeding value of hay, corn fodder, corn silage (frosted and 

 unfrosted), corn stover, the butts and the tops of corn stover, apple 

 pomace silage, Hungarian grass silage, pea and oat hay, and pasture. 

 The trial lasted from November 28, 1888, to May 22, 1889, and was 

 divided into eight periods of three weeks each, the first week of each 

 period being regarded as a transition period. The same grain ration was 

 fed to all the cows during the entire experiment, viz., 2.5 pounds wheat 

 bran, 1.5 pounds cotton- seed meal, 1 pound corn meal, and 1 pound 

 gluten meal per day. The hay was substituted in separate periods in 

 part or wholly by the other coarse fodders mentioned above, of which 

 the animals were given more than they would eat, and the residue 

 weighed back but not analyzed. " The financial aspect of the case is 

 not considered in this article, but simply th-e relative amount of product 

 obtained from the different fodders, without regard to their relative 

 cost." 



The tabulated data include the feeding record of each cow, analyses 

 of the wheat bran, cotton-seed meal, gluten meal, corn meal, hay, fodder 

 corn, corn stover (both upper and lower half of stalks), apple pomace 

 silage, pea and oat hay and fodder, corn silage, and Hungarian grass 

 silage fed; the yield and analyses of milk, and the amount of milk, 

 solids and fat produced by each cow per i)ouud of dry matter eaten 

 for each of the several periods. The author discusses these at consid- 

 erable length and draws the following conclusions : 



(1) Corn fodder aud corn silage from the same source had almost equal feeding 

 ■value in i)roducts iier pound of dry matter eaten; from different sources average 

 silage proved better than average fodder ; both corn silage and corn fodder proved 

 superior to whole stover, 



(2) The lower half of stover (butts) proved to have equal feeding value with the 

 upper half (tops) pound for i^ound of dry matter in each. 



(3) Hay and corn stover had much the same effect on milk production. 



(4) Corn silage from frost-bitten corn poorly made proved inferior to that well 

 made from unfrosted corn. 



