| title | creator | language | description | tableOfContents | contributor | subject | created |
| Cases of Organic Diseases of the Heart | Warren, John Collins, 1778-1856 | en | | | | | 2008-10-07 |
| Zoonomia, Vol. II
Or, the Laws of Organic Life | Darwin, Erasmus, 1731-1802 | en | | | | Medicine -- Early works to 1800; Physiology -- Early works to 1800; Evolution (Biology) -- Early works to 1800; Pathology -- Early works to 1800 | 2008-12-23 |
| On the Origin of Species: or, the Causes of the Phenomena of Organic Nature | Huxley, Thomas Henry, 1825-1895 | en | | | | Darwin, Charles, 1809-1882; Evolution | 2001-11-01 |
| The Scientific Evidences of Organic Evolution | Romanes, George John, 1848-1894 | en | | | | | 2006-11-27 |
| The Present Condition of Organic Nature | Huxley, Thomas Henry, 1825-1895 | en | | | | Darwin, Charles, 1809-1882; Evolution | 2001-11-01 |
| A Mechanico-Physiological Theory of Organic Evolution | Nägeli, Carl Von, 1817-1891 | en | Translation of: Mechanisch-physiologische Theorie der Abstammungslehre | | | | 2010-08-23 |
| Zoonomia, Vol. I
Or, the Laws of Organic Life | Darwin, Erasmus, 1731-1802 | en | | | | Medicine -- Early works to 1800; Physiology -- Early works to 1800; Evolution (Biology) -- Early works to 1800; Pathology -- Early works to 1800 | 2005-04-25 |
| Method By Which the Causes of the Present and Past Conditions of Organic Nature Are to Be Discovered — the Origination of Living Beings | Huxley, Thomas Henry, 1825-1895 | en | | | | | 2001-11-01 |
| The Past Condition of Organic Nature | Huxley, Thomas Henry, 1825-1895 | en | | | | Darwin, Charles, 1809-1882; Evolution | 2001-11-01 |