Published in Annals of the Transvaal Museum, in 1919, in volume 6, issue 3, pages 63-111

Published in Annals of The Transvaal Museum, in 1919, in volume 6, issue 3, pages 112-115

Published in Annals of The Transvaal Museum, in 1919, in volume 6, issue 3, pages 116-118

Published in Annals of the Transvaal Museum, in 1919, in volume 7, issue 1, pages 1-76