
Quote from Derain's letter, 23 August 1909 to Maurice de Vlaminck, in Lettres à Vlaminck, p. 205; as cited and translated in 'Report: André Derain's 'Trees by a Lake', by F. Whitlum-Cooper and Cleo Nisse http://courtauld.ac.uk/wp-content/uploads/2015/06/Report-Derain-by-F-Whitlum-Cooper-and-Cleo-Nisse.compressed.pdf, p. 10 - note 8