What is a home? The idea of home is usually connected with that of family, as a place wherein young are born and reared, a common shelter for the reproductive group. The word may be also applied to the common shelter for any other permanent group, and to the place where any individual habitually stays. Continuous living in any place by individual or group makes that place a home; even old prisoners, at last released, have been known to come back to the familiar cell because it seemed like "home" to them. But "the home," in the sense in which we here discuss it, is the shelter of the family, of the group organised for purposes of reproduction. In this sense a beehive is as much a home as any human dwelling place--even more, perhaps. The snow hut of the Eskimo, the tent of hides that covers the American savage, the rock-bound fastness of the cave-dweller--these are homes as truly as the costliest modern mansion. The burrow of the prairie dog is a home, a fox's earth is a home, a bird's nest is a home, and the shelter of the little "seahorse" is a home. Wherever the mother feeds and guards her little ones,--more especially if the father helps her,--there is, for the time being, home. This accounts at once for the bottomless depths of our attachment to the idea. For millions and millions of years it has been reborn in each generation and maintained by the same ceaseless pressure. The furry babies of the forest grow to consciousness in nests of leaves, in a warm stillness where they are safe and comfortable, where mother is--and mother is heaven and earth to the baby. Our lightly spoken phrase "What is home without a mother?" covers the deepest truth; there would never have been any home without her. It is from these antecedents that we may trace the formation of this deep-bedded concept, home. The blended feelings covered by the word are a group of life's first necessities and most constant joys: shelter, quiet, safety, warmth, ease, comfort, peace, and love. Add to these food, and you have the sum of the animal's gratification. Home is indeed heaven to him. The world outside is, to the animal with a home, a field of excitement, exertion, and danger. He goes out to eat, in more or less danger of being eaten; but if he can secure his prey and drag it home he is then perfectly happy. Often he must feed where it falls, but then home is the place for the after-dinner nap.