Illustrations of the theory and practice of ventilation : with remarks on warming, exclusive lighting, and the communication of sound (1844)
Reid, D. B. (David Boswell), 1805-1863 · London : Longman, Brown, Green, & Longmans · leaf 329
ants with illuminated drops, appearing likestars diffused over the ceiling. 683. By the arrangements adopted, the products of com-bustion could be drawn down in cold weather through iron pil-lars concealed at b b, so as to impart a mild and equal heat tothe apartment, being afterwards led away… … ducts of combustion having been carried away by descent througha concealed ventilating pipe a. The carrier tube explained inthe next paragraph is indicated by 5 ; c is the gas-pipe for thepermanent light, which was obtained from upwards of sixty pa-tent jets, one of which is seen at d. The light…
