The gardener's magazine and register of rural & domestic improvement (1826)
Loudon, J. C. (John Claudius), 1783-1843, A. & R. Spottiswoode, printer, United States. Patent Office. Scientific Library, former owner DSI · London : Longman, Rees, Orme, Brown and Green · leaf 149
d along the drain d, to be reheated by the pipes,and again rarefied so as to reenter at h. By these simple andobvious means, the air is in a state of continual circulation, asshown by the arrows in the section. The degree of heat in thehouse is regulated by shutting, partially or wholly, the… … ■^^.x extra-moisture is wanted, water is poured through the grating(c), so as to cover the bottom of the drain. In Mr. Pennshot-house, in which he grows orchidaceous plants, the drainsare about 6 ft. apart, about 18 in. deep, and ] ft. wide; in hisgreen-house, they are about 12 ft. apart; and in…
