COOLING AND AERATION 



39 



tached to the ceiling (Fig. 5). The milk reservoir is also 

 supported by galvanized iron gas pipes, in the manner 

 shown in the illustration. 



The water pump should be fastened to the concrete 

 floor in a manner similar to that in which the cream 

 s£parator is fastened (see page 57). 



Tubular Cooler. Fig. 6 illustrates this type of cooler, 

 which is recommended for dairymen having thirty or 

 more cows. This cooler is very substantial, and, as a 

 rule, has greater width in proportion to lenefth than the 

 corrugated style, which leaves the top of the cooler a 

 more convenient distance from the floor. It may be 

 fastened and operated in the same manner as the corru- 

 gated cooler shown in Fig. 5. 



Cone-shaped Cooler. 

 For dairies having fewer 

 than fifteen cows a cheap 

 cooler like that shown in 

 Fig. 7 may be used to 

 advantage. The water 

 enters the bottom of the 

 cooler and discharges at 

 the top, while the milk 

 flows in a thin sheet over 

 the outside. Ice may be 

 placed inside the cooler, 

 if desired. The can .at 

 the top is the milk re- 

 ceiver, which has small 

 openings at the bottom near the outside, through which 

 the milk discharges in fine streams, directly upon the 

 cone below. 



Cooling With Brine. This is the cleanest, most con- 



Fig. 7.— Cone Shaped Cooler. 



