Beobachtungen an Wirbeltieren der Karrooformation. I-XXVIII.
1933-1937. Reprints Sber. Bay Akad. Wiss. Over 750 pp. many figs. 29 plts. many fold-out. Complete set in 11 issues (reprints), orig. wrps. very good, 8vo.
Contributions to South African vertebrate palaeontology 2-6.
1908, Extract Ann. S. Afric. Mus. 4-8; pp. 351-376, 2 plts. contains: 2. On the pareiasaurian genus, Propappus. 3. On some new therocephalian reptiles. 4. On the inter-relationships of the known therocephalian genera. 5. On a new labyrinthodont Rhinesuchus Whaitsi, from the Permian Beds of South Africa. 6. Note of the species of Mesosaurus. Orig. wrps.