197 



FOOD AND AVERAGE COMPOSITION OF BUTTER FROM EACH 



KIND OF FOOD. 



Feeding cotton seed and cotton seed meal to cows on 

 pasture, had a slight effect in hardening the butter, in- 

 creasing the melting point from 1 to 3 degrees centi- 

 grade. Three pounds of cotton seed meal and one 

 pound of bran gave as hard a butter as eight pounds of 

 cotton seed meal and one pound of bran. 



The volatile acids in the butter were not materially 

 affected by the different rations. 



MILK PKESERVATIVES. 



• A study of milk preservatives for composite testing, 

 was made in order to ascertain the one best suited to 

 our conditions. Potassium bichromate, mercuric chloride 

 and formalin were used. Each cow's milk was sampled 

 as s,oon as drawn, and the sample taken was put into a 



