On the variation of species, with especial reference to the insecta : followed by an inquiry into the nature of genera
- publisher: London : J. Van Voorst
- creator: Wollaston, Thomas Vernon, 1822-1878
- Keyword: Variation (Biology) Insects.
- years: 1856.
- pages: vi, [2], 206 p. ;
- class: QH401
- notes: Continued by: Landmarks II.
- download: pdf file