But nests cannot always be allowed to be made on the ground, unless properly secured from vermin, particularly from rats, which will frequently convey away the whole of the eggs from under a hen. And other considerations may render it necessary to have them on a floor, in boxes on the ground, or placed above; in which cases the eggs must be kept properly moistened, for, unless the egg is kept sufficiently damp, its inner membrane becomes so hard and dry that the chicken cannot break through, and perishes. When a hen steals her nest in a hedge or clump of evergreens or bushes, she makes it on the damp ground. She goes in search of food early in the morning, before the dew is off the grass, and returns to her nest with her feathers saturated with moisture. This is the cause of the comparatively successful hatching of the eggs of wild birds. The old farmers' wives did not understand the necessity of damping eggs, but frequently complained of their not hatching, although chickens were found in them, which was, in most cases, entirely caused by want of damping. If, therefore, the weather is warm and wet, all will probably go well; but if the air should be very dry, moisture must be imparted by sprinkling the nest and eggs slightly, when the hen is off feeding, by means of a small brush dipped in tepid water. A small flat brush such as is used by painters is excellent for this purpose, as it does not distribute the water too freely. The ground round about, also, should be watered with hot water, to cause a steam. But the natural moisture of a damp soil is preferable, and never fails. The nest may be of any shape. A long box divided by partitions into several compartments is much used, but separate boxes or baskets are preferable as being more easily cleaned and freed from vermin. Wooden nest-boxes are preferable to wicker baskets in winter, as the latter let in the cold air, but many prefer wicker baskets in summer for their airiness. A round glazed earthen pan, with shelving sides, like those used in the midland counties for milk, and partially filled with moss, forms a good nest, the moss being easier kept moist in such a pan than in a box. The nest should be made so large that the hen can just fill it, not very deep, and as nearly flat inside at the bottom as possible, so that the eggs may not lean against each other, or they may get broken, especially by the hen turning them.