CONTENTS vii 



Solids; Determination of Solids Not Fat; Deter- 

 mination of the Specific Gravity of the Solids; 

 Determination of the Per Cent, of Fat in the Total 

 Solids; Determination of the Degree of Adultera- 

 tion; Tests for Nitrates and Nitrites; Detection of 

 the Usual Adulterations; Determination of the Re- 

 fraction Number; Determination of the Reaction; 

 Tests for Preservatives; Standard Methods of 

 Counting Bacteria; Examination for Streptococci; 

 Examination for Coli; Examination for Tubercle 

 Bacilli; Fermentation Test; Estimation of the 

 Number of Leucocytes; Boiling Test; Alcohol 

 Test; Catalase Test; Reductase Test; Fermentation 

 Reductase Test; Diastase Test; Tests for Heated 

 Milk; Examination for Dirt; Test for Lactose; Ex- 

 amination for Coloring Matters. 



APPENDIX 303 



Methods and Standards for the Production and 

 Distribution of "Certified Milk": Organization 

 of Medical Milk Commissions; Hygiene of the 

 Dairy; Transportation; Veterinary Supervision of 

 the Herd; Bacteriological Standards; Chemical 

 Standards and Methods; Methods and Regula- 

 tions for the Medical Examination of Employees, 

 Their Health and Personal Hygiene, 



