Most Popular Books
- Der Mensch und seine Stellung in Natur und Gesellschaft in Vergangenheit, Gegenwart und Zukunft; oder, Woher kommen wir? Wer sind wir? Wohin gehen wir?
- The Museum of Natural History: with introductory essay on the natural history of the primeval world: being a popular account of the structure, habits, ... the various departments of the animal kingdom
- Facts and Arguments for Darwin
- Loudon's Natural History. Popular Descriptions, Tales and Anecdotes of More Than Five Hundred Animals
- Nitzsch's Pterylography, Tr. from the German
