The woman's book : dealing practically with the modern conditions of home-life, self-support, education, opportunties, and every-day problems (1894)
New York : C. Scribner's sons · leaf 302
d-dies in the way shown in Fig. V. Thewarmer air also tends to accumulate inthe upper part of a room, and it doesnot change so quickly as that nearerthe floor, unless some special device isadopted to displace it. The simplestway to get rid of this air rapidly is bymeans of a ventilating shaft which… … Pig^ V.— Diagram showing direction of air-currents winendrawn out by a heated chinnney through an open fire-place elevation. or sometimes both in the upper andlower parts of the room. Suitablevalves are provided which regulate thesize of the openings, and permit them tobe completely closed when…
Women · Home Economics · Interior decoration
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