THE CARE OF MILK. 



247 



inside may be lined with porcelain tiles and the top of 

 the wall covered with a marble coping. A section of a 

 house provided with such a pool is shown at figure 40. 

 The house may be sunk two feet below the surface, or 

 built on the level of the ground, as may be convenient. 

 The water is brought into the tank by a lead pipe, a, 

 at the bottom, and escapes at the water level of the tank, 

 as sho^vn at h. The passage around the tank is in- 

 tended to be three feet wide, which gives ample roo^ 

 for brick benches here and there, upon which cream jars, 

 pails or dishes x>i butter or spare utensils may be placed. 



WATER, 



W//////>y^J^//yy/y/'//Y////y//y/'y///?. 



////Wy/////^ 



Fig. 40.— MILK-HOUSE WITH RAISED TANK. 



The drainage of such a house should be perfect, and good 

 ventilation should be secured by such methods as have 

 been described in previous chapters. The roof should be 

 divided from the lower apartment by a ceiling having 

 two or three feet of space above, by which the heat of 

 the sun beating on the roof is shut off. The cooler the 

 house is kept, the drier it will be ; for the evaporation of 

 the water will be less, and the less the evaporation, the 

 less condensation there will be upon the floor, the walls, 

 and the sides of the tank. 



A small frame spring-house built, as a preliminary 

 test, by the author, and which had the pool sunk in the 

 ground so as to utilize a spring which existed on the 

 spot, has been found very useful. It cost less than forty 



