1. 1934 Reptiles and amphibians: Their habits and adaptations. Revised edition. Houghton Mifflin Co., New York.
2. and 1930 Reptiles and amphibians from Liberia. Report of the Harvard African Expedition. R. Strong, vol. 2, p. 776.
3. 1932 The mammal-like reptiles of South Africa and the origin of mammals. H. F. and G. Witherby, London.
4. The development of the gall cyst and its related ducts in the Gecko, Gymnodactylus Kotschyi
5. The development of the spleen in the Gecko, Gymnodactylus kotschyi