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 605
below the level of the adjoining canals, have a thick flooring and thick sidewalls of masonry, built with cement, which completely exclude water.The sash-bar used in this orchidaceous house has side gutters for collectingthe drip, as shown in the section, fig. 68., which is of the full size.…