t be prevented from finding a lodgment.

The best woods for use in the hot rooms are close-grained and free from
essential oils. Mahogany is excellently adapted for the purpose, and so,
also, is teak. Pitch pine must be discarded altogether. Deal, when
employed, should be perfectly seasoned, and may then give trouble from
the exudation of turpentine.

The partitions, and the doorways in them, must be so placed as to govern
the flow of hot air. So long as the main divisions be planned with this
end in view, the separate rooms may be divided and broken up as the
architect may fancy. But the constant flow of the heated air from the
inlet in the hottest room towards the lavatorium must not be interfered
with by recesses, nooks, and corners, or anything that would cause the
current to stagnate. And here we may see the practical advantage
possessed by a bath where the hot rooms are _en suite_, and in a line
with one axis. For here the air sweeps uninterruptedly through the
different chambers without eddying around corners and stagnating in
recesses far out of the main stream.

The doorways in the partitions should not be too lofty. They should not
be hung with doors, as anything necessary in this way will be amply
supplied by depending curtains.

_Glazing_ in the hot rooms requires care. The glass will expand
considerably with the heat, and, what is more, if the furnace fire die
out rapidly at any time, will contract and fracture. This difficulty,
however, is the result of bad management, and does not concern the
architect, unless, indeed, it be the result of improper fixing. Even
moderate-sized sheets of glass should be carefully fixed in chamois
leather with screwed beading, _putty_ being wholly inadmissible. The
sheets of glass should not be of too large dimensions. Rolled glass will
be found the cheapest in the end, as inferior qualities, where
homogeneity of texture is wanting, will crack and split in all
directions. Lead glazing should be altogether discarded.

No provision for draining the hot rooms is necessary, as they must, when
in use, be kept free from moisture. The floor may, however, if thought
desirable, be laid with an imperceptible fall the way the water would be
swept when cleansing--viz. towards the lavatorium.

As the best position for a bather to assume in the sudatorium is one
approaching to the horizontal, a bath cannot be considered complete
unless a liberal number of marble-slabbed benches be pr