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 193
4th, If a boiler have sufficient surface to receive the effect of the fire,and the whole apparatus contains as much water as will convey the heatfrom the fire to the heating surface in the time corresponding to its velo-city, its capacity need not be further increased, except as a reservoir ofheat,… … 5th, Where heat is required only during the action of the fire, alarge surface in proportion to its capacity may be used with advantage, togive off heat over the descending pipe (^figs. 26. and 27.): cooling iii thi^manner will increase the velocity.
