Books in Biology (sorted alphabetically by author)
- Ohio Biological Survey, Bull. 10, Vol. 11, No. 6 Bruce Fink and Leafy Jane Corrington Hilker
- My Studio Neighbors W. Hamilton Gibson
- Evolution: An Investigation and a Critique Theodore Graebner
- Darwiniana; Essays and Reviews Pertaining to Darwinism Asa Gray
- An Elementary Study of Insects Leonard Haseman
- Ducks at a Distance: A Waterfowl Identification Guide Bob Hines
- What is Darwinism? Charles Hodge
- Our Vanishing Wild Life: Its Extermination and Preservation William T. Hornaday
- The Minds and Manners of Wild Animals: A Book of Personal Observations William T. Hornaday
- Birds in Town & Village W. H. Hudson
- Human Genome Project, Chromosome Number 01 Human Genome Project
- The Origin of Species Thomas Henry Huxley
- The Darwinian Hypothesis Thomas Henry Huxley
- 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
- Darwiniana : Essays — Volume 02 Thomas Henry Huxley
- Lectures on Evolution Thomas Henry Huxley
- On the Reception of the 'Origin of Species' Thomas Henry Huxley
- American Addresses, with a Lecture on the Study of Biology Thomas Henry Huxley
- Criticisms on "The Origin of Species" Thomas Henry Huxley
- Nature Near London Richard Jefferies
- Catalogue of British Columbia Birds Francis Kermode
- Anecdotes of the Habits and Instinct of Animals Mrs. R. Lee
- Synopsis of Some Genera of the Large Pyrenomycetes C. G. Lloyd
- Essays on early ornithology and kindred subjects James Roxburgh McClymont
- Fathers of Biology Charles McRae