Key points are not available for this paper at this time.
Charles Close, Mr. Hinks, H. R. Mill, Vaughan Cornish, Harmonies of Tone and Colour in Scenery Determined by Light and Atmosphere: Discussion, The Geographical Journal, Vol. 67, No. 6 (Jun., 1926), pp. 524-528
Close et al. (Tue,) studied this question.