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 39
cylinders traversed by air-pipes. Ji, Pipe communicating from the last cylinder to the lower part of the boiler a,and promoting the circulation of water by its pressure on the rarefied pipe f. i. Old flue, to which the fire-place and boiler are adapted, and evaporating [?Jthe smoke. k, Level of the… … a. Boiler. b, Fire-place. c, Ash-pit. e. The pyramid for supplying coal. f. The heated water passing out of the boiler, and circulating underneath thehot-bed in the form of a worm, as seen in Fig. 5. (Jig. SO.), and returning by thepipe g to the lower part of the boiler a, and promoting the…