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 160
the flow and returnpipes, and d a flange for examining and cleansing the boilerwhen necessary. Into this flange is fixed a small pipe, which,being connected upwards with the supply cistern e, and down-wards with the cock or tap h, serves to fill and empty the appa-ratus. The supply cistern {e) acts…
