THE BUTTER INDUSTRY 9 



CONTENTS 



Chapter I 

 HISTORY AND DEVELOPMENT OF BUTTER INDUSTRY 



Early history Later development Influence of centrifugal cream sepa- 

 rator Influence of Babcock test Influence of other inventions In- 

 fluence of dairy research, instruction and control Influence of cream- 

 ery promoter Annual butter production in U. S. and in foreign 

 countries Number of creameries in U. S Pages 15-30 



Chapter II 



CREAMERY ORGANIZATION, CONSTRUCTION AND EQUIP- 

 MENT 



Creamery organizations Mutual co-operative creamery asso. Joint stock 

 company with co-operative features Proprietary creamery Creamery 

 corporation Location of factory Water supply Sewage disposal 

 Type of building Drainage and drains Light Ventilation Store 

 room Cold room Heating Insulation of ammonia, brine, steam and 

 water lines Pages 31-46 



Chapter III 

 BUYING MILK AND CREAM 



Systems of securing milk and cream Direct deliveries Cream routes 

 Skimming stations Cream stations Route and station shortages 

 Independent cream buyer Farmers' co-operative marketing associa- 

 tions Direct shipper system Concentration points Management of 

 patron Pages 31-60 



Chapter IV 

 CARE OF MILK AND CREAM ON THE FARM 



Healthy cows and attendants Proper feed and water Cleanliness Clean- 

 liness of separator bowl How to wash the separator Care of cream 

 after separation How to cool cream Age of cream Protection of 

 cream in transit Pages 60-67 



Chapter V 

 SEPARATION OF MILK 



Purpose Principle of separation Methods of separation Gravity separa- 

 tion Centrifugal separation Theory of centrifugal separation Con- 

 struction of separator Separator frame Bowl and spindle Skim- 

 milk outlet Cream outlet Proportion of skim milk and cream 

 Supply tankj float and discharge pans Driving mechanism Power 

 separators Hand separators Systems of oiling Power require- 

 ments Capacity of separator Conditions affecting skimming effi- 

 ciency Conditions affecting richness of cream Advantages of cen- 

 trifugal separation over gravity creaming Pages 68-118 



