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 261
plant from plant, in squares; introducing hard-w^ood plants (say oak) at 12 ft. apart, interlined as marked by thedarkest spots. Supposing this a plantation ultimately to standeither as oak coppice, larch, or Scotch pine, the first thinningmight be necessary some time between the 6th and 9th… … maining will be interlined without the trouble of conspicuous knots on a garden line in planting. If hard wood is inter-mixed as indicated by the dark marks, the larch nurses maybe Billingtoned [have their side branches foreshortened] wherethey interfere with the reserves, before the second…