THE PRINCIPLES 



OF 



MODEM DAIRY PRACTICE 



. FROM A 



BACTERIOLOGICAL POINT OF VIEW. 



BY 



GOSTA GROTENFELT, 



President Mustiala Agricultural College, Finland. 



AUTHORIZED AMERICAN EDITION 



BY 



F. W. WOLL, 



Assistant Professor of Agricultural Chemistry, University of Wisconsin 



'Hi) KHustrations. 



FIRST 



FIRST THOUSAND. 



NEW YORK: 



JOHN WILEY & SONS, 

 53 EAST TENTH STREET. 



1894. 



