Above, a bird, a cricket, an insect, a branch and fruit of the guaiacum tree, an eel and a sea-pie; below, a sprig of a flower, three molluscs, two insects and a piece of a ferric oxide ore. Engraving by Heath.

Licence: Public Domain Mark

Credit: Above, a bird, a cricket, an insect, a branch and fruit of the guaiacum tree, an eel and a sea-pie; below, a sprig of a flower, three molluscs, two insects and a piece of a ferric oxide ore. Engraving by Heath. Wellcome Collection. Source: Wellcome Collection.