A long upright narrow window does not answer the purpose for which it was constructed. The light enters the room from the sky, not from the earth, therefore only through the upper portion of a window. The wide window gives us the greatest possible amount of light. If we were but to revert to the Elizabethan window, we would find a singular improvement in our health and spirits. Our old country houses were, say modern masons, shockingly badly built. "Why, sir," said one to me, "do look here at this wall. It is three foot six thick--what waste of room!--and then only the facing is with mortar between the stones, all the rest of the stones are set in clay." I was engaged building my porch when the man said this. So I, convinced by his superior experience, apologized for my forbears, and bade him rebuild with mortar throughout. What was the result? That wall has been to me ever since a worry. The rain beats through it; every course of mortar serves as an aqueduct, and the driving rain against that wall traverses it as easily as if it were a sponge. Our old houses were dry within--dry as snuff. Now we cannot keep the wet out without cementing them externally. Those fools, our forefathers, by breaking the connexion prevented the water from penetrating. Do any of my readers know the cosiness of an oak-panelled or of a tapestried room? There is nothing comparable to it for warmth. What the reader certainly does know is, that from a papered wall and from a plate-glass window there is ever a cold current of air setting inwards. He supposes that there is a draught creeping round the walls from the door, or that the window-frame does not fit; and he plugs, but cannot exclude the cold air. But the origin of the draught is in the room itself, and it is created by the fire. The wall is cold and the plate-glass is cold, and the heated atmosphere of the room is lowered in temperature against these cold surfaces, and returns in the direction of the fire as a chill draught. But when the room is lined with oak or with woven woollen tapestry, then the walls are warm, and they give back none of these chill recoil currents. The fire has not the double obligation laid on it of heating the air of the apartment and the walls. In Germany and Russia during the winter double windows are set up in every room, and by this means a film of warm air is interposed between the heated atmosphere of the room and the external cold air. That our ancestors did not attempt,--plate-glass was not known to them,--but they did what they could in the right direction. They covered the chill stone and plaster walls of the rooms with non-conducting materials.