From the January 19, 1935, issue

GIRL TWINS REPEAT FAMOUS EXPERIMENT OF JIMMY-JOHNNY

A 15-month-old baby climbing fearlessly up a high, steep incline, climbing unaided off stools as high as a grown person’s head, and beginning to navigate on roller skates was watched by a group of scientists, educators, and others at a demonstration of the remarkable effects of special psychological training at the Normal Child Development Clinic of the Babies Hospital in New York City.