Books in Biology (sorted by popularity)
- The Scientific Evidences of Organic Evolution George John Romanes 91 downloads
- Parasiten der Honigbiene (German) Eduard Philibert Assmuss 88 downloads
- Birds of Guernsey (1879) Cecil Smith 86 downloads
- On the Reception of the 'Origin of Species' Thomas Henry Huxley 85 downloads
- The Evolution of Man Scientifically Disproved in 50 Arguments William A. Williams 84 downloads
- Darwiniana : Essays — Volume 02 Thomas Henry Huxley 84 downloads
- Synopsis of Some Genera of the Large Pyrenomycetes C. G. Lloyd 83 downloads
- At the Deathbed of Darwinism: A Series of Papers Eberhard Dennert 82 downloads
- Ohio Biological Survey, Bull. 10, Vol. 11, No. 6 Bruce Fink and Leafy Jane Corrington Hilker 80 downloads
- Catalogue of British Columbia Birds Francis Kermode 76 downloads
- Concerning Animals and Other Matters Edward Hamilton Aitken 76 downloads
- Criticisms on "The Origin of Species" Thomas Henry Huxley 74 downloads
- Darwiniana; Essays and Reviews Pertaining to Darwinism Asa Gray 73 downloads
- A Theory of Creation: A Review of 'Vestiges of the Natural History of Creation' Francis Bowen 69 downloads
- Essays on early ornithology and kindred subjects James Roxburgh McClymont 69 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 69 downloads
- Biology : A lecture delivered at Columbia University in the series on Science, Philosophy and Art November 20, 1907 Edmund B. Wilson 67 downloads
- Proefnemingen van de particuliere beweeging der spieren in de kikvorsch (Dutch) Jan Swammerdam 67 downloads
- Facts and Arguments for Darwin Fritz Müller 64 downloads
- The Doctrine of Evolution: Its Basis and Its Scope Henry Edward Crampton 61 downloads
- The Dancing Mouse: A Study in Animal Behavior Robert Mearns Yerkes 54 downloads
- "Wee Tim'rous Beasties": Studies of Animal life and Character Douglas English 54 downloads
- The Darwinian Hypothesis Thomas Henry Huxley 47 downloads
- Human Genome Project, Chromosome Number 01 Human Genome Project 25 downloads