| title | creator | language | description | tableOfContents | contributor | subject | created |
| Lamarck, the Founder of Evolution
His Life and Work | Packard, A. S. (Alpheus Spring), 1839-1905 | en | | | | Lamarck, Jean Baptiste Pierre Antoine de Monet de, 1744-1829; Evolution (Biology); Naturalists -- France -- Biography | 2007-02-10 |
| Our Friend John Burroughs | Barrus, Clara, 1864-1931 | en | | | | Burroughs, John, 1837-1921; Authors, American -- 19th century -- Biography; Naturalists -- United States -- Biography | 2004-09-01 |
| The Autobiography of Charles Darwin | Darwin, Charles, 1809-1882 | en | | | | Evolution (Biology) -- History; Naturalists -- England -- Biography; Darwin, Charles, 1809-1882 | 1999-12-01 |
| Through Forest and Stream
The Quest of the Quetzal | Fenn, George Manville, 1831-1909 | en | | | | South America -- Juvenile fiction; Naturalists -- Juvenile fiction; Indians of South America -- Juvenile fiction | 2007-11-15 |