PRINCIPLES AND PRACTICE 
OF 
BUTTER-MAKING 
A TREATISE ON THE CHEMICAL AND PHYSICAL PROPERTIES 
OF MILK AND ITS COMPONENTS 
THE HANDLING OF MILK AND CREAM, AND THE 
MANUFACTURE OF BUTTER THEREFROM 
BY 
G. L. McKAY ann C. LARSEN, M.S.A. 
” 
Professor in Dairying Assistant Professor in Dairying 
or THE Iowa STaTE CoLLEGE, AMES, Ia. 
FIRST HDITION 
FIRST THOUSAND 
NEW YORK 
JOHN WILEY & SONS 
Lonpon: CHAPMAN & HALL, Liwitep 
1906 
