COOLING AND AERATION 45 
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 
separator is fastened (see page 95). 
Tubular Cooler. Fig. 6 illustrates this type of cooler, 
which is recommended for large dairymen and milk 
dealers. This cooler is very substantial, and, as a 
rule, has greater width in proportion to leneth 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 corrti- © 
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 mill: 
flows in a thin sheet over 
the outside. Ice may be 
placed inside the cooler, 
if desired. The can at ; 
the top is the mille res Fig. 7.—Cone Shaped Cooler. 
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- 
