| Author's List |
| title | creator | language | description | tableOfContents | contributor | subject | created |
| Modern Atheism under its forms of Pantheism, Materialism, Secularism, Development, and Natural Laws | Buchanan, James, 1804-1870 | en | 2006-12-31 | ||||
| Essays on the Materialistic Conception of History | Labriola, Antonio, 1843-1904 | en | Kerr, Charles H. [Translator] | 2010-06-01 |