Edward S. Ellis, The Huge Hunter, or the Steam Man of the Prairies… (1868)
“ At this instant, the feet of the steam man began rising and falling with lightning like rapidity, the wagon being jerked forward with such sudden swiftness, that both Ethan and Mickey turned back summersets, rolling heels over head off the vehicle to the ground, while the monster went puffing over the prairie, and at a terrific rate. ”
