CHAPTER XXII. 



CERTIFIED MILK. 



Definition. Certified milk is milk produced under 

 conditions imposed by medical milk commissions, which 

 usually employ a veterinarian, a bacteriologist and a 

 chemist to look after the production of the milk. It must 



Fig. CO.— Sanitary Dairy Barn. (Da. Div., U. S. Dept. of A.) 



be free from disease germs and preservatives, must have 

 a known chemical composition, and must be so produced 

 and handled as to insure a minimum numoer of bacteria. 



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