House, a habitation or edifice suited with conveniencies for the abode of man.

The chief requisites in con-structing houses are, situation, durability, and convenience, of which we have already treated under the article Building ; we shall therefore only notice an expired patent granted in 1786* to Mr. Dennis M'Carthy, for his then new-invented compound, applicable to the formation of tiles.

The patentee directs three bushels of Thames sand, or any white fluxing sand, to be mixed with a bushel of salt, and calcined in a kiln or furnace till it become a hard sub-stance. These ingredients are then to be ground fine, and one bushel of them mixed with an equal quantity of white clay, or whiting, to which are to be added one bushel of calcined ground flint, or ground glass; plaster of Paris may also be mingled with the clay, if the latter article cannot be easily procured ; and, by the addition of smalt, the compound may be made of a beautiful slate colour.

When the ingredients are mixed together, and moistened with water, they should be worked till they acquire a consistence proper for casting them into moulds. The pieces, or tiles thus formed, are next to be burned in a furnace, or kiln, the fire being confined by funnels or muffles. The size of these tiles depends on the distance of the rafters, on which they are to be placed in such a direction, that the joints may meet in the centre, and either fold over, or fix into each other exactly; in which state they are to be fastened by pegs, screws, spikes, etc. when the joints are to be closed with stone cement, tarras, or fine mortar. - A more particular account of this invention will be found in the 1lth vol. of the Repertory of Arts and Manu-factures, where it is fully specified.