Books in Biology (sorted by popularity)
- Essays on early ornithology and kindred subjects James Roxburgh McClymont 83 downloads
- On the Reception of the 'Origin of Species' Thomas Henry Huxley 79 downloads
- Facts and Arguments for Darwin Fritz Müller 78 downloads
- "Wee Tim'rous Beasties": Studies of Animal life and Character Douglas English 78 downloads
- A Critical Examination of the Position of Mr. Darwin's Work, "On the Origin of Species," in Relation to the Complete Theory of the Causes of the Phenomena of Organic Nature Thomas Henry Huxley 70 downloads
- At the Deathbed of Darwinism: A Series of Papers Eberhard Dennert 68 downloads
- Love's Meinie: Three Lectures on Greek and English Birds John Ruskin 68 downloads
- Nouveaux souvenirs entomologiques - Livre II (French) Jean-Henri Fabre 66 downloads
- Ohio Biological Survey, Bull. 10, Vol. 11, No. 6 Bruce Fink and Leafy Jane Corrington Hilker 65 downloads
- Darwiniana : Essays — Volume 02 Thomas Henry Huxley 63 downloads
- A Theory of Creation: A Review of 'Vestiges of the Natural History of Creation' Francis Bowen 63 downloads
- Catalogue of British Columbia Birds Francis Kermode 62 downloads
- Criticisms on "The Origin of Species" Thomas Henry Huxley 62 downloads
- Proefnemingen van de particuliere beweeging der spieren in de kikvorsch (Dutch) Jan Swammerdam 62 downloads
- American Addresses, with a Lecture on the Study of Biology Thomas Henry Huxley 59 downloads
- Development of the Digestive Canal of the American Alligator A. M. Reese 55 downloads
- The Doctrine of Evolution: Its Basis and Its Scope Henry Edward Crampton 49 downloads
- The Scientific Evidences of Organic Evolution George John Romanes 49 downloads
- Evolution: An Investigation and a Critique Theodore Graebner 47 downloads
- Synopsis of Some Genera of the Large Pyrenomycetes C. G. Lloyd 47 downloads
- The Darwinian Hypothesis Thomas Henry Huxley 44 downloads
- Biology : A lecture delivered at Columbia University in the series on Science, Philosophy and Art November 20, 1907 Edmund B. Wilson 39 downloads
- The Dancing Mouse: A Study in Animal Behavior Robert Mearns Yerkes 39 downloads
- Human Genome Project, Chromosome Number 01 Human Genome Project 25 downloads