Attention should be given to such arrangements as are calculated to promote health: among these, ventilation is by no means the least. For this purpose, the ceilings of the apartments should have a respectable height; and the sky-light, or any part of the roof that can be made movable, should be arranged with cord and pullies, so as to be easily raised and lowered. Small openings near the ceiling, that may be closed at pleasure, should be made in the partitions that separate the rooms from the passages - especially for those rooms which are used for sleeping apartments. All the apartments should be so arranged as to secure their being easily kept dry and clean. In dwellings, suitable apartments should be fitted up for bathing with all the necessary apparatus for conveying water.