| title | creator | language | description | tableOfContents | contributor | subject | created |
| Australia, its history and present condition
containing an account both of the bush and of the colonies,
with their respective inhabitants | Pridden, W. (William), 1810- | en | | | | | 2009-12-05 |
| The Condition, Elevation, Emigration, and Destiny of the Colored People of the United States | Delany, Martin Robison, 1812-1885 | en | | | | | 2005-11-26 |
| The Condition and Tendencies of Technical Education in Germany | Chamberlain, Arthur Henry, 1870-1942 | en | | | | | 2008-09-12 |
| The Present Condition of Organic Nature | Huxley, Thomas Henry, 1825-1895 | en | | | | Darwin, Charles, 1809-1882; Evolution | 2001-11-01 |
| The Past Condition of Organic Nature | Huxley, Thomas Henry, 1825-1895 | en | | | | Darwin, Charles, 1809-1882; Evolution | 2001-11-01 |
| The Condition of the Working-Class in England in 1844
with a Preface written in 1892 | Engels, Friedrich, 1820-1895 | en | | | Kelley, Florence, 1859-1932 [Translator] | Working class -- Great Britain; Great Britain -- Economic conditions | 2005-12-13 |