Originally printed in 1868, this compendium of ingenious mechanisms employs simple drawings to explain 507 of the small components that constitute complex machinery. Left-hand pages feature illustrations, and facing pages offer brief descriptions of each item's use and operation. Ranging from simple to intricately complex, the mechanisms include the cranks, pulleys, drills, wheels, and screws that serve as components of elevators, steam engines, and watches. This volume will appeal to inventors, tinkerers, and anyone interested in the history of invention and technology.