96 



jDer acre Avas estimated. A table gives observations, inchidiiig times 

 of tasseliiig, silking, bloom, and stage of ripeness for eight varieties 

 of Avhite dent, seven of yellow dent, one of white flint, twelve of yel- 

 low flint, and sixteen of sweet corn. The chemical composition of 

 the larger })art of these varieties is also stated. The earty A'arieties 

 were cut at that stage known as '* glazed,'' but some of the later, 

 larger varieties had not reached that stage when harvested. As a 

 rule the dent varieties yielded the most fodder and more dry matter 

 than either flint or sweet varieties. 



Southern ri<. finf coni for xihic/e — Field and feeding experiments 

 (jDp. 13-2()). — On one half of an adjacent field of four acres a large 

 variety of Southern white, and on the other half Mercer, one of the 

 most prolific varieties of flint corn, was planted. Observations as to 

 development and composition are included in the table above referred 

 to. The Southern corn yielded "iO.S tons of corn fodder and 6.2 tons 

 of water-free substance, /. c., actual nutritive material exclusive of 

 water; the flint corn, 13 tons of corn fodder and 4.4 tons of dry mat- 

 ter per acre. Feeding experiments were made to observe the rela- 

 tive value of the dry matter of the silage from these tAvo kinds of 

 corn. The flint corn was ensiled when in the glazing stage and had 

 Avell-dcA^eloped ears, estimated equivalent to 40 bushels of shelled corn 

 per acre; the Southern corn when in the " early milky stage." 



In one experiment four Holstein-Friesian coavs Avere fed for milk, 

 and in another six native and grade coavs and heifers Avere fed for 

 fattening. During the Avhole time the animals of each experiment 

 Avere divided into two groups, one of Avhich had cold Avatf^r and the 

 other Avarm. The silage Avas fed Avith enough timothy hay, bran, 

 corn meal, and oil-cake to nuike a Avell-l)alanced ration. After a pre- 

 liminary feeding all the cows Avere fed flint-corn silage and grain for 

 a period of tAveh'e days, then Avith Southern-corn sdage and grain for 

 a second period of tAveh'e davs, and Anally flint-corn silage and grain 

 for a third jx'riod of eight days. The three periods extended from 

 March to April 17. The details of the experiments are given in 

 fifteen tables, shoAving age, time of last calving, and daily yield of 

 milk i)rior to selection for each coav; chemical composition of the 

 silage, estimated digestible nutrients and nutritiA'e ratios, and com- 

 positions of rations fed each lot of coavs during each period : Aveight 

 of each coav at beginning and end of each period ; Avater and feed 

 consumed, milk given, and butter produced during each period. The 

 inferred relatiA'e values of the tAvo kinds of silage used for feeding, 

 and incidentally the effects of the Avarm and cold water, are stated. 



Iie.sult.^ of feeding experiments^ (pp. .19-24). — In these trials, so far 

 as the fattening of the cattle Avas concerned, as implied by the Aveigh- 

 ing, flint-corn silage gave better returns per acre than the Southern- 

 corn silage. This Avas belieA'ed to be principally due to the larger 

 amount of Avell-ripened ears in the former. For milk, the value of 

 the drv matter of the tAvo kinds of corn, as measured bv the milk 



