CONTENTS. XI 



Slack's test ._. . __. 128 



Doane-Buckley test 129 



Savage's test 131 



Troniuisdorff's test 131 



Significance of results .. 132 



Streptococci in milk 133 



Microccocci in milk . . 134 



Leucocj-tes in milk 134 



Summary 136 



Bloody milk 138 



References ... . . 138 



CHAPTER VIII. 



BACTEIUOI.OGICAI^ KXAMINATION OF MII.K. 



Numerical determination of bacteria ... 141 



Significance of re,sults 150 



Microscopic estimate of bacteria 151 



Tests for H. coli 152 



Examinations for typhoid fever and diphtheria bacilli 152 



Tubercle bacilli 153 



Determination of streptococci. 154 



Qualitative determinations _ 154 



References .^ 155 



CHAPTER IX. 



CKRTIFIKll MII.K 



Milk commis.sions . 156 



Association of milk commissions . . 157 



Source of authority . 157 



P'ield of milk commission activities 157 



.\greeinent with dairj'men 158 



Sanitary requirements for dairymen. 158 



Experts emplo)'ed by milk commissions . . . . 164 



Veterinary inspection 164 



Bacteriological examinations . 165 



Chemical examinations 166 



Medical inspection 167 



The certified milk package 167 



Amount of certified milk produced 168 



Fraudulent certified milk 168 



Maintenance of standard , 169 



Milk dispensaries 170 



Rochester, N. Y., milk dispensaries 170 



References ■. 172 



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