| Author's List |
| title | creator | language | description | tableOfContents | contributor | subject | created |
| Geological Contemporaneity and Persistent Types of Life | Huxley, Thomas Henry, 1825-1895 | en | Life (Biology); Fossils | 2001-11-01 | |||
| Christentum als mystische Tatsache und die Mysterien des Altertums. English | Steiner, Rudolf, 1861-1925 | en | Collison, Harry [Editor] | Mysticism; Christianity and other religions; Mysteries, Religious; Anthroposophy | 2008-02-04 |