1. The Transvaal Fossil Human Skeleton
2. Boskop Remains from the South-east African Coast
3. 1925On the new Cape Town skull. IllLondon News, p. 432
4. 1930A short course on physical anthropology2nd ed.Cape Town: Merchantile Press
5. 1931New fossil mammals and man from South AfricaBloemfontein: Nasionale Pers. Bpk