BY THE SAME AUTHOR. 



Groteiifelt's Modern Dairy Practice. American Edition 

 by F. W. WoLL. Second Edition. New York, 1897. 

 285 pp. $2.00. 



A Book on Silage. Second Edition. Chicago, 111., 1899. 

 190 pp. Paper, 50 cents ; cloth, $1.00. 



Jointly 7vit/i Pre/. E. H. Farrington. 



Testing Milk and its Products. Sixth Edition. Madi- 

 son, Wis., 1899. 256 pp. $1.00, 



