Room, a chamber, parlour, or other apartment of a house.

The principal object to be attained in tire arrangement of rooms, is, doubtless, conveniency, and their adaptation to health: hence the rectangular square, seems to be best calculated for this purpose; though a cube is not only the most agreeable, but also the most economical, figure. In large bouses, however, the particular shape is of less consequence than the height of a room, which should be at the least 10 or 12 feet from the floor; as otherwise it may form a spacioust but cannot be considered a proportionate, or healthy apartment.

The elevation of rooms greatly depends on their figure. If they be constructed in a regular square, their height should, on architectural principles, not exceed 5-6ths, ofthe sides, nor be less than 4-5ths; but, in oblong chambers, it may be equal to their breadth.—A square rcom of a large size, is so far in-convenient, as the chairs, tables, etc. are too remote from the hand, so that they must be ranged along the sides of the room, when unemployed. Utility, therefore, requires a commodious apartment, to be a parallelogram; a figure well adapted for the admission of light.-Thus, to avoid cross-lights,-all the windows ought to be introduced through one wall; for, if the op posite wall (as would be the case in oblong rooms) be at such a dis-tance as not to receive sufficient light, the chamber will necessa-rily be obscure. Hence we may conclude, that utility and beauty, in the construction of substantial dwelling-houses, are with difficulty combined, nay often incompatible. As the moisture and coldness of our climate, are formidable objections to high or lofty apartments} because they cannot, in the prevailing mode of warming them, be easily rendered of an uniform temperature; and as, on the other hand, low rooms are extedingly unhealthy, we shall concisely state the substance of a patent granted in December, 1793,to Mr. Joseph Green, for a method of communicating warmth to rooms, and buildings, by means of heated air, supposed to be much purer than any that has hitherto been con-trived.—For this purpose, the patentee employs a boiler, made of iron, copper, etc. within which is fixed one or more hollow vessels, or worms. The former vessel may be paced in any chamber, behind a stove or grate, so as to partake of a common fire; its size may be regulated by the extent of the apartment, or other place intended to be warmed; the steam is conducted in pipes, disposed in the most convenient manner, to the different rooms or other parts of the building. But, as this patent is not yet expired, the curious reader is referred to the 1st vol. of the Repertory of Arts, etc. where the whole process is minutely de-scribed.—See also Air