Hopping Stilts Are the New French Playthings. ... For France and especially Paris has taken to the "pogo" stick, a stick equipped with two rests for the feet. Inside of the stick is a strong spring so that the "pogoer" may take a series of jumps without straining his powers. The doctors claim that the jarring produced by the successive jumps do not serve to injure the spine, as one might at first suppose. This jumping habit is spreading through France and England and the eastern part of the United States. ["Illustrated World," Sept., 1921]