PRINCIPLES AND PRACTICE 



BUTTER-MAKING 



A TREATISE ON THE CHEMICAL AND PHYSICAL PROPERTIES 



OP MILK AND ITS COMPONENTS 



THE HANDLING OP MILK AND CREAM, AND THE 



MANUFACTURE OP BUTTER THEREFROM 



BY 



G. L. McKAY, 



Professor of Dairying in the Iowa State College, Ames, la. 

 AND 



C. LARSEN, M.vS.A. 



Professor of Dairy Husbandry, So. Dak. State College, Brookings, S D.; 

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



SECOXD EDITIOX, REVISED AXD EXLARGED. 

 FIRST THOUSAND 



NEW YORK 



JOHN WILEY & SONS 



London; CHAPMAN & HALL, Limited 



1908. 



