ii4 



CLEAN MILK 



The Star cooler (Fig. 16), or that of the tubular variety (Fig. 

 17), are by far the most efficient, certain and convenient coolers, 



Fig. 16. 



Star Cooler. 



although more expensive in first cost than the conical aerators. 

 The much greater surface offered by the tremendously corrugated 



Fig. 17. 



SP RING WA TER I 

 DISCHARGE 



ICE WATE»v 



Tubular Cooler. 



form of the cooler, together with the forced circulation of water 

 which flows continuously from below upward through the cooler, 

 account for the superiority of this type of cooler. 



