Why should not so invaluable and simple a remedy for disease, such a preservative of health, such a comfort, such a stimulus, be considered as much a matter-of-course in a house as a kitchen-chimney? At least there should be one bath-room always in order, so arranged that all the family can have access to it, if one cannot afford the luxury of many. A house in which water is universally and skilfully distributed is so much easier to take care of as almost to verify the saying of a friend, that his house was so contrived that it did its own work: one had better do without carpets on the floors, without stuffed sofas and rocking-chairs, and secure this. * * * * * "Well, papa," said Marianne, "you have made out all your four elements in your house except one. I can't imagine what you want of _earth_." "I thought," said Jennie, "that the less of our common mother we had in our houses, the better housekeepers we were." "My dears," said I, "we philosophers must give an occasional dip into the mystical, and say something apparently absurd for the purpose of explaining that we mean nothing in particular by it. It gives common people an idea of our sagacity, to find how clear we come out of our apparent contradictions and absurdities. Listen." * * * * * For the fourth requisite of "our house," EARTH, let me point you to your mother's plant-window, and beg you to remember the fact that through our long, dreary winters we are never a month without flowers, and the vivid interest which always attaches to growing things. The perfect house, as I conceive it, is to combine as many of the advantages of living out of doors as may be consistent with warmth and shelter, and one of these is the sympathy with green and growing things. Plants are nearer in their relations to human health and vigor than is often imagined. The cheerfulness that well-kept plants impart to a room comes not merely from gratification of the eye,--there is a healthful exhalation from them, they are a corrective of the impurities of the atmosphere. Plants, too, are valuable as tests of the vitality of the atmosphere; their drooping and failure convey to us information that something is amiss with it. A lady once told me that she could never raise plants in her parlors on account of the gas and anthracite coal. I answered, "Are you not afraid to live and bring up your children in an atmosphere which blights your plants?" If the gas escapes from the pipes, and the red-hot anthracite coal or the red-hot air-tight stove burns out all the vital part of the air, so that healthy plants in a few days wither and begin to drop their leaves, it is a sign that the air must be looked to and reformed. It is a fatal augury for a room that plants cannot be made to thrive in it. Plants should not turn pale, be long-jointed, long-leaved, and spindling; and where they grow in this way, we may be certain that