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 158
281. Fig. 118 indicates the position of the same instrument Fisr. 118. … when used to ventilate by propulsion, or by the plenum im-pulse. 134 MISCELLANEOUS ILLUSTRATIONS. Figs. 119 and 120 shew the position of the screw, when em-ployed in parallel circumstances. Fig. 119. Fig. 120.
