Frobenius, Leo: Prehistoric rock pictures in Europe and Africa: from material in the archives of the Research Institute for the Morphology of Civilization, Frankfort-on-Main (New York: Museum of Modern Art, 1937)

ures have weapons, clothing and a headdress which seem to be the
product of an Egyptian-Assyrian culture and which move us to a
comparison with the pictures of Southern Rhodesia, a comparison
which does not tell us a great deal. How this one picture, obviously the
product of a high culture, came to be painted in Bushman territory
(for that is what it used to be) is a mystery for which we have no
explanation.
DOUGLAS C. FOX