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 158
lace, a decrease of sap during thelatter part of summer and in the autumn. The following isthe plan proposed as being likely to effect both these objects: — Commence your operations upon a hill composed of chalk,or of any kind of stone which can be easily worked, havingfrom six inches to a foot of… … off the earth from the top of the hill till you have workeddownwards thirteen or fourteen feet; wheel it away, and lay itin a ridge at the foot of the hill; then remove the chalk orstone to any place where it will not be in the way, till you re-duce the upper part of the hill to the angle formed by…
