Humanity and economy alike dictate that, in the North, sheep should be provided with shelters under which to lie nights, and to which they can resort at will. It is not an uncommon circumstance in New York and New England for snow to fall to the depth of from twenty to thirty inches within twenty-four or forty-eight hours, and then to be succeeded by a strong and intensely cold west or northwest wind of several days continuance, which lifts the snow, blocking up the roads, and piling huge drifts to the leeward of fences, barns, etc. A flock without shelter will huddle closely together, turning their backs to the storm, constantly stepping, and thus treading down the snow as it rises about them. Strong, close-coated sheep do not seem to suffer as much from the cold, for a period, as would be expected. It is, however, almost impossible to feed them enough, or half enough, under such circumstances, without an immense waste of hay--entirely impossible, indeed, without racks. The hay is whirled away in an instant by the wind; and, even if racks are used, the sheep, leaving their huddle, where they were kept warm and even moist by the melting snow in their wool, soon get chilled, and are disposed to return to their huddle. Imperfectly filled with food, the supply of animal heat is lowered, and, at the end of the second or third day, the feeble ones sink down hopelessly, the yearlings, and those somewhat old, receive a shock from which nothing but the most careful nursing will enable them to rally, and even the strongest suffer an injurious loss in condition. Few persons, therefore, who own as many as forty or fifty sheep, attempt to get along without some kind of shelters, which are variously constructed, to suit their tastes or circumstances. A sheep-barn, built upon a side-hill, will afford two floors: one underneath, surrounded by three sides of wall, should open to the south, with sliding or swinging doors to guard against storms; and another may be provided above, if the floors are perfectly tight, with proper gutters to carry off the urine; and sufficient storage for the fodder can be furnished by scaffolds overhead. They may also be constructed with twelve or fifteen-feet posts on level ground, allowing the sheep to occupy the lower part, with the fodder stored above.