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 686
andthat, at the request of his friend Mr. Downing, he let that gentleman have itto send to us. Dr. Torrey also accompanied the plant with a section of thetrunk of the tree, which we have also received. It is between 6 in. and 7 in. indiameter, and li in. in depth, the grain much coarser than that…