“Alan Mitchell (1922-1995) became famous in the world of {{w|Dendrology|tree study}}, especially in his native England, as the preeminent tree measurer. He wrote some 9 or 10 tree books, covering identification, history in cultivation, utility to people, and growth. His last, posthumous title cites the abundance, performance, strengths and weaknesses of 163 kinds of trees cultivated in Britain.”