_a._ The entrance door. _b._ A small window looking into the Frigidarium; a gas lamp, for use at night, is seen through the pane. _c._ A thick plate of glass in the outer wall, for admitting light. _d d._ Ventilating holes; the lower one is furnished with a wooden plug. _e._ The masonry which encloses the furnace. _f._ The flue, proceeding from the furnace along the side of the room. _g g._ The flue crossing the end of the room. _h._ The flue returning along the opposite side of the room. _i._ The ascending flue. _k._ The flue crossing above the furnace, and then ascending, _l l_, the angle of the room, to terminate in the chimney. _f g g h_, support a wooden seat, on which the bathers sit; along the front of this seat, as at _f_, _h_, are perforated tiles and spaces, which give passage to the heated air. _m._ The warm water tank. _n n._ A platform, which also serves as a seat; the feet resting on the step _o o_. _p p._ The _dureta_; the letters are placed on the feet of the couch. The floor is tesselated; and on the seat are seen two wooden basins, containing soap and a bunch of _lyf_.] [Illustration: MR. URQUHART'S BATH; THE BATH AT RIVERSIDE. (Page 79.) _a._ The door of entrance. _b._ The ceiling of the vestibule of the Bath. The side or rather the end of the vestibule _c_ is occupied by an immense sheet of plate glass, through which are seen the Frigidarium, and the window of the Frigidarium, with a trellis of roses beyond. _d._ The floor of the vestibule. _e e._ One side of the great Hall of the Bath. _f._ A step covered with a Turkish towel. _g._ A platform, under which the hypocaust, _h h_, extends from one side to the other of the Hall. _i._ An ornamental grating, through which heated air enters the Hall directly from the furnace. _k k._ The tent, or enclosed chamber immediately over the furnace, where the highest degree of heat exists; the Laconicum. _l._ A couch, of lower temperature, but still hot, from being over the hypocaust. _m._ The spiracle of perfume from the mignionette bed. _n._ The floor of the Hall. _o._ The Lavatrina. _p._ A couch of less heat than _l_. _q._ Steps leading to the pool of cold water. _r._ The piscina or cold pool.] [Illustration: GROUND-PLAN OF MY OWN BATH AT RICHMOND-HILL. (Page 88.) _a a._ Front wall. _b._ Door of entrance from a lobby, leading from the Frigidarium. _c._ Vestibule. _d._ Inner door. _e e._ Spiracles or ventilators. _f._ Mouth of the furnace. _g._ Furnace of fire-brick, enclosed in a jacket of hollow brick. _h h h._ Flue. _i._ Chimney. _k._ Returned flue, supporting a tank for warm water. _l l._ Outer wall; the dark shade between _l h_, and _l k_, indicates the interval between the flue and outer wall. _m._ The Lavatrina. _n._ Tesselated pavement.] [Illustration: THE DURETA, OR RECLINING COUCH, USED IN THE BATH; BOTH IN THE CALIDARIUM AND FRIGIDARIUM. (Pages 53, 97.)