corn meal to gluten and reaffirms the verdict of Table A. Lot 

 Y shows a test of gluten as compared with cotten seed, the 

 black-faced type representing the cotton seed periods. The ra- 

 tions as fed were as follows : 



The effect of the substitution of cotton seed for gluten is 

 very marked in the hardness of the resulting butter, and corrob- 

 orates the reports from stations in the South as to the effect in 

 this direction cf feeding cotton seed in quite large quantities.* 



Lot Z represents a single test of feeding skim milk to cows, 

 and, so far as the butter product is concerned, shows very favor- 

 able results. It is, undoubtedly, a good use for skim-milk when 

 not needed for feeding younger animals. The rations were as 

 follows : 



METHODS USED. 



Wollny's modification of Reichert's method was used in 

 the determination of Volatile Fatty Acids ; Wiley's method for 

 the dftermination of the melting point; and Hubl's for the Io- 

 dine Absorption Number. The hardness of the butters was 

 measured at the same ttmperature by the depth of penetration 

 of a weighted glass rod falling through a glass tube for a given 



■*See Bulletin 11, Texas, etc. 



