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 323
Fig. 50. Section of a tree of which the branches had died, or been cut off in the third year progressively.Fig. 51. Section of a stem of sixteen years growth, showing the remains of branches pruned in the tenth and twelfth years. 52 53