While in stable, the cow must also have plenty of pure air and sweet water, and not be chilled in obtaining either. Without pure air, the cow becomes debilitated and diseased, and the milk impure and unwholesome. Impure water both taints and corrupts the product. A proper temperature--certainly above freezing--should be kept up. Remember, the cow standing still cannot resist cold as she could if she were free to move about. It is cheaper to build warm stables--always providing for perfect ventilation, the air coming in at the head and passing off in the rear of the cow--and even to resort to artificial heating, than to compel the cow to burn an extra amount of carbonaceous food in her system to keep up the temperature of her body. Not only is fuel cheaper than food, but the system of the cow cannot devote to milk secretion the energy which is expending in secreting and consuming fat to maintain a proper amount of vital heat. SHELTER. Proper shelter in summer, from the scorching rays of the mid-day sun, and from beating storms and winds, is necessary. This should be easily accessible. Especially in early spring and late fall do the animals suffer severely from exposure to the cold winds and storms of all hours in the twenty-four. DAIRY HOUSE. Every dairyman should have a good dairy house distinct from the dwelling apartments. It need not, necessarily, be a separate building, but it should not be subject to the inflowing of odors from the kitchen and sitting rooms. The dairy house should be so constructed that the temperature may at all times be kept under perfect control. There should be no surrounding cesspools or other malodorous sources of taint, and the ventilation should be free without perceptible drafts or currents of air. No matter what method of setting milk and churning may be adopted, there is a decided advantage in having the dairy house, or any other workshop, separate from the dwelling apartments, so that the work of the one shall in no way interfere with the work of the other. Almost all dairymen fail, to some extent, in not having the dairy house entirely separate. It would cost but little extra; and until dairymen look upon the business as their life work and build and plan accordingly, we need not expect the best possible success in dairying. CLEANLINESS.