caption: The image shows a drawing of a man in a running position on a white background with the text "Mechanism of Equine Locomotion" and a patent from 1876 printed on it. The man is wearing a blue shirt and shorts, and has a determined expression on his face. He is running with his arms and legs outstretched, and his feet are firmly planted on the ground. The text is printed in black ink and is surrounded by a thin black border.