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PRODUCTIVE FARMING 



scalded thoroughly with boiling water to kill the bacteria. 

 This is called sterilizing them. 



Fig. 215. — King system of ventilation for dairy barns. The air outlet should 

 start near the floor and extend through the roof. The inlet for air into the stable 

 is near the ceiling, but should start outside well above the ground. Windows are 

 for light, not for ventilation, when the King system is in use. 



Fig. 216. — Five styles of milk pails, intended to reduce the amount of dirt in 

 milk which falls in from cows and from milkers. Which do you consider the best 

 form for this purpose? 



Cooling and Airing. — As soon as milk is drawn from the 

 udder it should be taken to a clean place and thoroughly 

 aired and cooled. The temperature should be lowered quickly 



