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 456
t; h •to Fig. 316 shews where the dotted ground appears, abed efg h, Fig . 316. m J ■ ^i^^^^^-Vl-AMr;^::^/; •,&• $£#; ;>;;£ T] ■••,.•// d 1 •a- WMm9M&& — «L ..:.-\4 m I ;c, ■••A-■.•.■■: ■ ■ •■■ ■*••• ■•• : J ■••■ •■■■-■■•■■•• •■ - the amount of diffusion which can be given in many… … 4 .5 6 endless varieties of forms that have been long used to prevent 432 APPENDIX. the influences of the external air from producing down-draughtsin chimneys. It is scarcely necessary to remark, that, howeverimportant it may be to protect chimneys from the wind or localeddies, all such…
