CERTIFIED MILK 223 



the permanganate. The rooms should be kept closed for four hours. 

 As there is a slight danger of fire, the reaction should be watched 

 through a window or the pails placed on a noninflammable surface. 



97. Following a weekly medical inspection of the employees, a 

 monthly report shall be submitted to the secretary of the medical 

 milk commission, on the same recurring date by the examining visit- 

 ing physician. 



