A horseman showing three different gaits with his horse, including the gallop, the pas and the trot and a horse galloping alone. Etching by C. Parrocel.

Licence: Public Domain Mark

Credit: A horseman showing three different gaits with his horse, including the gallop, the pas and the trot and a horse galloping alone. Etching by C. Parrocel. Wellcome Collection. Source: Wellcome Collection.