Above, the shell of a purpura; below, three sea shells and three diagrams of pyramids. Etching by T. Jefferys.
- Reference:
- 41850i
Licence: Public Domain Mark
Credit: Above, the shell of a purpura; below, three sea shells and three diagrams of pyramids. Etching by T. Jefferys. Wellcome Collection. Source: Wellcome Collection.
