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 201
407. On other occasions, a more complicated piece of appa- AMOUNT OF AIR REQUIRED FOR VENTILATION. 177 ratus was employed (Figs. 139, 140), consisting of a large ironframe, glazed like a window, and connected with a pump, bywhich air of any quality could he supplied hy drawing it throughthe smaller…
