CONTENTS ix 



PAGE 



tamination of Milk Contamination of Milk by Domestic Animals and 

 Vermin Contamination of Milk by Flies Essentials of Clean Milk Pro- 

 duction The North System Dairy Farm Score Cards Future of the Score 

 Card Dirty Dairies Slop Dairies The Cost of Milk Production. 



CHAPTER V 



THE TRANSPORTATION OF MILK 193 



The Hauling of Milk Transportation of Milk by Steamboat Trans- 

 portation of Milk by Electric Cars Transportation of Milk by Steam Rail- 

 roads Philadelphia Some Economic Features of Transportation of Milk by 

 Railroad Temperature of Milk in Transit by Rail Types of Cars Used in 

 Transporting Milk Rates of Transporting Milk Improvement in Shipping 

 Milk in Pittsburg Temperatures and Age of Milk Handled by Contractors 

 Use of Motor Vehicles in Collecting and Delivering Milk Age of Milk 

 When Delivered to Consumers Cost of Operating Delivery Wagons. 



CHAPTER VI 



THE MILK CONTRACTOR ... ... 228 



Advent of the City Milk Problem The Milk Contractor Different 

 Branches of Dairying Dominate Producing Territory Influence of Con- 

 tractors in Dairy Districts Basis on which Milk is Purchased Tendency to 

 Concentration Methods of Paying Producers Milk Plants Country Milk 

 Plants The Item of the Surplus The North System Handling of Milk 

 in Country Plants Cream The Cream Separator Advantages of City 

 Milk Plants General Features of City Milk Plants Classification of City 

 Milk Plants Basement Plants Ground Floor and Basement Plants 

 Single Story Plants Plants of More Than One Story Minimum Require- 

 ments for a City Milk Plant Environment of the Milk Plant General 

 Plan of the Milk Plant Water Supply of the Milk Plant Plumbing of 

 the Milk Plant Cost and Equipment of the Milk Plant U. S. Depart- 

 ment of Agriculture Milk Plant Score Card Medical Inspection of the 

 Employees Platforms Inspection of Plant Age of Milk on Arrival at 

 Plant Tasting the Milk Drip Pans Wasjiing of Cans Dirt in Milk 

 Clarification of Milk Standardizing Storage in Tanks Preservation of 

 Food by Heat Application of Pasteurization to Milk The Work of 

 Koplik Work of Nathan Straus Pasteurization Adopted by Milk Contract- 

 ors Arguments For and Against Pasteurization Pasteurization Pre- 

 vents the -Spread of Contagion by Infected Milk Pasteurization Lowers the 

 Infantile Morbidity Rate Pasteurization Checks Bacterial Changes in 

 Milk Pasteurization Delays the Souring of Milk Uninspected Milk 

 Should be Pasteurized Heating Milk Unnatural Pasteurizing Milk and 

 Dirty Dairying Spore-bearing Organisms Survive Pasteurization Other 

 Bacteria that Survive Pasteurization Ability of B. Coli to Survive Pasteuri- 

 zation Ability of the Streptococci to Survive Pasteurization Effect of 

 Pasteurization on Mould Spores Multiplication of Bacteria in Pasteurized 

 Milk Destruction of Toxins by Pasteurization Physical and Chemical 

 Changes Induced in Milk by Pasteurizing Suitability of Pasteurized 

 Milk for Infant Feeding Milk for Babies a Special Milk Pasteurization 

 an Additional Process Milk Liable to Recontamination after Pasteuriza- 

 tion Overconfidence in Pasteurized Milk Pasteurization and the Score 

 Card Milk Liable to Bovine Infection Impossible to Protect Milk from 



