X CONTENTS. 



Improvement in Richmond. Ya. 103 



Washington milk supply 104 



Educational activities 104 



Inspection of cows 105 



Inspection of dairy apparatus 105 



Inspection of water supply 106 



Scope of inspection 106 



The score card for city milk plants 106 



Milk-borne epidemics 109 



Temperature standard 109 



Numerical determinations of bacteria in milk 110 



Education of the public 112 



References 112 



CHAPTER VI. 



PASTEURIZATION OK MILK. 



General definition 114 



Incentives for pasteurization 114 



^Conditions required for killing bacteria 115 



Bacterium tuberculosis 115 



Alteration of milk by heat 115 



Cooked taste 115 



Alterations of milk constituents 115 



Creaming quality 116 



Vital qualities of milk 116 



Spore-bearing bacteria. 116 



Bactericidal efficiency 117 



Low-temperature pasteurization. 117 



High-temperature pasteurization 118 



Commercial pasteurization . 118 



Efficiency 119 



Continuous-flow machines popular 120 



Care subsequent to heating 121 



* Pasteurization in Chicago 121 



Pasteurized milk in infant feeding 122 



^-Pasteurization of municipal milk supplies 123 



References . 124 



CHAPTER VII. 



MICROSCOPIC TESTS OK MII,K. 



Mammitis in the cow 126 



Tests for cellular content of milk 126 



Stokes' test 126 



Stewart's test ... .. 127 



