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 308
Full-grown tree at Syon; 57 ft. high ; diam. of the trunk, 3 ft.; and of the head, 47 ft. … The tree drawn to a scale of 1 in. to 12 ft.; the foliage to a scale of 2 in. to I ft. Cashiobury Park. 287
