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Published online by Cambridge University Press: 02 January 2015
1 The Stone Ages of South Africa as represented in the Collection of the South African Museum (Annals of the South African Museum, VIII, 1911).
2 The prehistoric period in South Africa (London, 1912).Google Scholar
3 Die Tumbakultur am unteren Kongo, (Anthropos, 1925, 20, 516).Google Scholar