| Title |
On the tendency of species to cause varieties |
| Author |
Charles Darwin and Alfred Wallace |
| Year |
1858 |
| Publisher |
Proceedings of the Linnean Society vol 3 |
| Source |
pdf |
| Progress |
DoneāAll pages of the work proper are validated |
| Transclusion |
Fully transcluded |
| Validated in |
October 2013 |