Above, a dromedary is kneeling before a god in the clouds, out of which Mercury is descending, below, a dromedary is carrying a load with a locust perched on top; illustration for a fable. Etching.

Licence: Public Domain Mark

Credit: Above, a dromedary is kneeling before a god in the clouds, out of which Mercury is descending, below, a dromedary is carrying a load with a locust perched on top; illustration for a fable. Etching. Wellcome Collection. Source: Wellcome Collection.