el of the floor of that chamber, and, also, where a
smoke flue of ample section can be constructed. The heated air may be
delivered through the gratings in the walls of the laconicum, or a shaft
of glazed brickwork, of rectangular section, may be constructed against
the end wall and coped at the required level--5 ft. or more above the
floor line. Should the exigencies of the site separate the furnace
chamber from immediate connection with the hottest room, the heated air
must be conducted from the former to the latter by means of a large
shaft or shafts of glazed brickwork. Similar means may have to be
employed to bring the cold air to the heating-chamber, and at the mouth
of this shaft some provision must be made for filtering the air before
it is brought into contact with the heating surfaces of the furnace.

Horizontal and inclined flues for conducting hot or cold air may be
carried from point to point on rolled iron joists having tooled York
slabs set thereon, the flues being constructed of 4-1/2 in. brickwork
with glazed face internally, and covered with tooled York slabs.
Provision must be made, in such flues, for effective cleansing, by means
of iron air-tight doors.

THE LAVATORIUM AND SHAMPOOING ROOM.

The lavatorium and shampooing room now engage our attention. In
elaborate baths they may, for the sake of effect, be distinct
apartments, while, where strict economy must be studied, they may be
comprised in one room; and where, again, space is extremely valuable,
the plunge bath and douche may be also included. If the first
arrangement be adopted, the shampooing room must be connected with the
tepidarium, and the lavatorium placed next. Where the combination
apartment is used, it will take the position of the shampooing room.
Practically, the combination arrangement is the best. It is putting the
bather to needless and undesirable trouble to require him to move from
one apartment to another during the washing process.

The suite of washing and shampooing rooms may be arranged in either one
of the following ways, according to the pretensions and requirements of
the establishment:--(1) A shampooing room, a lavatorium, a douche room,
and a plunge bath chamber; (2) a combined shampooing and washing room,
and a combined douche and plunge bath chamber; (3) several small
combined shampooing and washing rooms, a douche room, and a plunge bath
chamber; (4) an apartment comprising shampooing slabs, washing basins,
d