| 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: Lecture VI. (of VI.), "Lectures to Working Men", at the Museum of Practical Geology, 1863, on Darwin's Work: "Origin of Specie | English | November 1, 2001 |
| American Addresses, with a Lecture on the Study of Biology | English | June 26, 2005 |
| Autobiography and Selected Essays | English | May 3, 2006 |
| Collected Essays, Volume V: Science and Christian Tradition: Essays | English | May 25, 2005 |
| Coral and Coral Reefs | English | November 1, 2001 |
| Criticisms on "The Origin of Species": From 'The Natural History Review', 1864 | English | November 1, 2001 |
| Critiques and Addresses | English | June 1, 2004 |
| Darwiniana : Essays — Volume 02 | English | November 1, 2004 |
| Discourses: Biological & Geological: Essays | English | November 1, 2003 |
| Evidence as to Man's Place in Nature | English | November 1, 2001 |
| Evolution and Ethics, and Other Essays | English | November 1, 2001 |
| Freedom in Science and Teaching.: from the German of Ernst Haeckel | English | June 6, 2008 |
| Geological Contemporaneity and Persistent Types of Life | English | November 1, 2001 |
| Hasisadra's Adventure: Essay #7 from "Science and Hebrew Tradition" | English | May 1, 2001 |
| Hume: (English Men of Letters Series) | English | July 13, 2006 |
| Lay Sermons, Addresses and Reviews | English | September 21, 2005 |
| Lectures and Essays | English | September 1, 2004 |
| Lectures and Essays | English | August 8, 2005 |
| Lectures on Evolution: Essay #3 from "Science and Hebrew Tradition" | English | May 1, 2001 |
| Life and Letters of Thomas Henry Huxley — Volume 1 | English | February 1, 2004 |
| Life and Letters of Thomas Henry Huxley — Volume 2 | English | March 1, 2004 |
| Life and Letters of Thomas Henry Huxley — Volume 3 | English | May 1, 2004 |
| Mr. Gladstone and Genesis: Essay #5 from "Science and Hebrew Tradition" | English | May 1, 2001 |
| Note on the Resemblances and Differences in the Structure and the Development of the Brain in Man and Apes | English | October 1, 2000 |
| On Some Fossil Remains of Man | English | November 1, 2001 |
| On the Advisableness of Improving Natural Knowledge | English | November 1, 2001 |
| On the Method of Zadig: Essay #1 from "Science and Hebrew Tradition" | English | May 1, 2001 |
| On the Reception of the 'Origin of Species' | English | February 1, 2000 |
| On the Relations of Man to the Lower Animals | English | November 1, 2001 |
| On the Study of Zoology | English | November 1, 2001 |
| Science & Education: Essays | English | December 1, 2004 |
| The Advance of Science in the Last Half-Century | English | March 4, 2005 |
| The Conditions of Existence as Affecting the Perpetuation of Living Beings: Lecture V. (of VI.), "Lectures to Working Men", at the Museum of Practical Geology, 1863, on Darwin's Work: "Origin of Species" | English | November 1, 2001 |
| The Darwinian Hypothesis | English | November 1, 2001 |
| The Evolution of Theology: an Anthropological Study: Essay #8 from "Science and Hebrew Tradition" | English | May 1, 2001 |
| The Interpreters of Genesis and the Interpreters of Nature: Essay #4 from "Science and Hebrew Tradition" | English | May 1, 2001 |
| The Lights of the Church and the Light of Science: Essay #6 from "Science and Hebrew Tradition" | English | May 1, 2001 |
| The Method by Which the Causes of the Present and Past Conditions of Organic Nature Are to Be Discovered; the Origination of Living Beings: Lecture III. (of VI.), "Lectures to Working Men", at the Museum of Practical Geology, 1863, on Darwin's Work: "Origin of Species" | English | November 1, 2001 |
| The Origin of Species: From 'The Westminster Review', April 1860 | English | November 1, 2001 |
| The Past Condition of Organic Nature: Lecture II. (of VI.), "Lectures to Working Men", at the Museum of Practical Geology, 1863, on Darwin's Work: "Origin of Species" | English | November 1, 2001 |
| The Perpetuation of Living Beings, Hereditary Transmission and Variation: Lecture IV. (of VI.), "Lectures to Working Men", at the Museum of Practical Geology, 1863, on Darwin's Work: "Origin of Species" | English | November 1, 2001 |
| The Present Condition of Organic Nature: Lecture I. (of VI.), "Lectures to Working Men", at the Museum of Practical Geology, 1863, on Darwin's Work: "Origin of Species" | English | November 1, 2001 |
| The Rise and Progress of Palaeontology: Essay #2 from "Science and Hebrew Tradition" | English | May 1, 2001 |
| Time and Life: Mr. Darwin's "Origin of Species" | English | November 1, 2001 |
| William Harvey and the Discovery of the Circulation of the Blood | English | November 1, 2001 |
| Yeast | English | November 1, 2001 |