| Author's List |
| title | creator | language | description | tableOfContents | contributor | subject | created |
| The Story of the Living Machine A Review of the Conclusions of Modern Biology in Regard to the Mechanism Which Controls the Phenomena of Living Activity | Conn, H. W. (Herbert William) | en | 2005-08-08 | ||||
| A Brief Account of Radio-activity | Venable, Francis Preston, 1856-1934 | en | 2010-05-09 | ||||
| Spontaneous Activity in Education | Montessori, Maria, 1870-1952 | en | 2008-03-02 | ||||
| Subjectivity | Spinrad, Norman, 1940- | en | Summers, Leo [Illustrator] | Short stories; Science fiction | 2009-12-21 |