DAIRY FARMING DAIRYING. 527 



fatty acids, insoluble fatty acids, sapouificatioii eciuivalent, iodin num- 

 ber, nor melting' point seemed to be regularly affected by the increase 

 in cotton-seed meal, tliougli most of these factors varied somewhat dur- 

 ing the experiment. 



"The average score on Havor ranged from 41 in period 1 on corn-and-cob meal and 

 bran to 41.5 in period 4 where the cows were having 4 lbs. of cotton-seed meal per 

 Lead (hiily. ... In periods 5 and 6, when the amonnt of cotton-seed meal fed was 5 

 and (5 lbs., respectively, per head daily, the scores were 40f and 40^, thus the score on 

 flavor of butter ranged nearly as high on 5 and 6 lbs. of cotton-seed meal in the 

 ration as when the cows were fed on a grain ration of corn-and-cob meal and bran." 



Sami^les of the butter kept in the creamery refrigerator for about 2 

 weeks usually fell off about 1 or 2 points in flavor, except where 5 lbs. of 

 cotton-seed meal was fed, in which case the flavor was scored 5 points 

 lower. 



"The opinion that cotton-seed meal feeding even in a moderate degree injures 

 the flavor of butter and gives more solidity and a higher melting point has gained 

 considerable credence among dairymen. This investigation does not indicate that 

 such results may be expected from the use of the feed in amounts within the range 

 here reported, viz, 2 to 6 lbs. 



"The work of both the Iowa and the Texas stations does not indicate any particu- 

 lar disturbance of the composition, quality, or flavor of butter from feeding cotton- 

 seed meal in quantities not exceeding 5 lbs. per day. Inasmuch as this is, perhaps, as 

 extensively as it will ever be advisable to feed tlie meal in Iowa it is safe to conclude 

 that it may be used as a dairy feed without injury to the butter product when the 

 circumstances are such as to warrant its use." 



The southern pea vine {Delaicare 8ta. Rpt. 1895, i)p. 7-21). — A brief 

 sununary is given of 4 years' experiments with the cowpea, covering 

 variety tests, manuring, and the utilization of the crop as green manure, 

 as hay, as pasture, and as silage. A large part of the work has been 

 previously reported in the Annual Keports of the Station for 1801 and 

 1893 (E. S. Ii., 5, ]). 577; 0, p. 802), but some additional work is given. 



For stock feeding the vines have been used as pasture, for soiling, 

 as hay, and as silage. As a hay croj) satisfaction has been experienced, 

 as is shown by letters from practical farmers. 



In an exi)eriment with cows, divided into 2 lots of 3 each, lasting 

 from February 2 to April 29, 1894, the feeding value of pea- vine silage 

 was compared with that of wheat bran. The trial was divided into G 

 periods of about 2 weeks' duration. It was made on a private farm 

 near the station. Seven and 9 lbs. of wheat bran were fed in compari- 

 son with 30 and 33 lbs. of pea-vine silage fed with sweet-corn silage, and 

 9 lbs, of bran was compared with 63 lbs. of pea- vine silage without the 

 corn silage. 



Samples of the milk were examined on 5 to 7 days of each period, 

 and the conclusions are drawn from the average results. Tables are 

 given showing the composition of the rations and the milk and butter 

 yield for each cow during 5 to 7 days of each test. The results, which 

 are discussed at length, are briefly summarized as follows: 



"In no instance was the substitution of a suitable ([uantity of [pea-vine] silage 

 for its equivalent in bran accompanied by a decrease in the yield either of milk or 



