"AGRICULTURAL 

 LIBRARY, 



UNIVERSITY 



BACTERIA IN MILK 



AND ITS 



PRODUCTS 



DESIGNED FOR THE USE OF STUDENTS IN DAIRYING AND 



FOR ALL OTHERS CONCERNED IN THE HANDLING 



OF MILK, BUTTER OR CHEESE 



BY 

 H. W. CONN, PH.D., 



PROFESSOR OF BIOLOGY, WESLEYAN UNIVERSITY, AUTHOR OF " EVOLUTION OF 



TO-DAY," " METHOD OF EVOLUTION," " AGRICULTURAL 



BACTERIOLOGY." ETC.. ETC. 



43 ILLUSTRATIONS 



PHILADELPHIA 



P. BLAKISTON'S SON & CO. 



1012 Walnut Street 



1903 





