The menace of colour; a study of the difficulties due to the association of white & coloured races, with an account of measures proposed for their solution, & special reference to white colonization in the tropics, (1925)
J. W. Gregory · leaf 136
General outline of Steven's division of South Africa,
Manance of color · 19th Century
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
