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 463
Art. II. A descriptive Sketch of the Cucumber, Melon, andother Forcing-Pits, generally in Use i?i Welbcck Garderp^Nottinghamshire. By Mr. Henry Thompson, Under-Gardener in the Forcing Department. Sir,Agreeably to the direction of Mr. Thompson, I send youa plan and sections of the forcing-pits in… … 118 and labour in the erection, by substituting stone lintels, inplace of MPhails pigeonholes, to the north and south wallswhich support the roof; and the suspended insulated posi-tion of the pits, admits a circulationof warm air, both under and allround the pit of each light, where-by a greater…