Laundry tubs are made of various materials, such as wood, wood lined with sheet lead, enameled or galvanized cast iron, cement stone, soap stone or earthenware. Wooden tubs are objectionable as this material readily absorbs the dirty water and becomes foul, emitting a close odor when not in use. Being alternately wet and dry they are liable to leak and will quickly rot. Cement stone laundry tubs are cheap, durable and cleanly. They have no seams, each tub being manufactured in one piece, and therefore will not leak. Galvanized or enameled iron and soap stone trays are equally good and much in use. The white crockery or "ceramic" tubs are undoubtedly the neatest, and are always perfectly clean and sweet. They are not subject to wear or leakage, nor do they absorb dirty water, and therefore do not become foul from use. They are, of course, more expensive than any of the others. Woodwork about wash tubs should be dispensed with as much as possible, and the tubs treated in this respect as suggested in general for plumbing fixtures.