Books in Biology (sorted alphabetically)
- On the Origin of Species by Means of Natural Selection Charles Darwin
- On the Origin of Species By Means of Natural Selection Charles Darwin
- On the Origin of Species by Means of Natural Selection Charles Darwin
- On the Reception of the 'Origin of Species' Thomas Henry Huxley
- Origin of Species by Means of Natural Selection Charles Darwin
- Origin of Species Thomas Henry Huxley
- Our Common Insects A. S. Packard
- Our Vanishing Wild Life: Its Extermination and Preservation William T. Hornaday
- Parasiten der Honigbiene (German) Eduard Philibert Assmuss
- Proefnemingen van de particuliere beweeging der spieren in de kikvorsch (Dutch) Jan Swammerdam
- Scientific Evidences of Organic Evolution George John Romanes
- Social Life in the Insect World Jean-Henri Fabre
- Souvenirs entomologiques - Livre I (French) Jean-Henri Fabre
- Species and Varieties, Their Origin by Mutation Hugo de Vries
- Story of the Living Machine H. W. Conn
- Synopsis of Some Genera of the Large Pyrenomycetes C. G. Lloyd
- Text Book of Biology, Part 1: Vertebrata H. G. Wells
- Theory of Creation: A Review of 'Vestiges of the Natural History of Creation' Francis Bowen
- Variation of Animals and Plants under Domestication Charles Darwin
- Wee Tim'rous Beasties": Studies of Animal life and Character Douglas English
- What is Darwinism? Charles Hodge
- Wild Nature Won By Kindness Mrs. Brightwen
- Wonders of Instinct: Chapters in the Psychology of Insects Jean-Henri Fabre
- Zoonomia; Or, the Laws of Organic Life, Vol. I Erasmus Darwin