PRINCIPLES AND PRACTICE 



OF 



BUTTER-MAKIIG 



BY 



G. L. McKAY, Dr.Sc. 



Secretary, American Association of Creamery Butter Manufacturers, 

 formerly Professor of Dairying in the loioa State College. Ames, la. 



AND 



C. LARSEN, M.S.A. 



Professor of Dairy Husbandary, >So. Dak., ^tate College, Brookings, S. D., 

 forinerly Associate Professor, Iowa State College, Ames, la. 



THIRD EDITION, LARGELY REWRITZ EN 



TOTAL ISSUE, SEVENTEEN THOUSAND 



NEW YORK 



JOHN WILEY & SONS, Inc. 



London: CHAPMAN & HALL, Limited 

 1922 



