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 363
at is getting prettystrong, let the bed be firstbeaten all over, then makeholes with an iron-shoddibber, 9 in. apart, anddeep enough to reach the stratum of loam : these will soon coolthe bed; and when the heat has declined to about 80°., the holesmay be bored by a conical block of wood, to about 2… … Culture of the Mushroom. 335 size of a hens egg in each, and fill the holes up level withthe surface, with the loam and droppings. The holes beingclosed, the heat will increase, and must be attended to : ifviolent, a few deep narrow holes may be made to let it escape;and, if too slight, it may be…