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 402
388 Dutch Manner of Forcing, … in an advanced state. These pits are built in other walledpits, and the linings neatly covered with shutters, which arehooked to the coping of the inner pits, and thus not onlythrow off the rain, but even, when the dung sinks, keep thewall of the inner pit warm to the very top. {Jig. 137.) Tokeep…
