ABSTRACT
In 1932 Johnny and Jimmy Woods became the subjects of an intensive study of behavior development at the Normal Child Development Study of the Babies Hospital, Columbia-Presbyterian Medical Center. One of the most interesting attainments of Johnny and Jimmy during their period of intensive study was that of manipulating a simple tricycle. The children were given skates as a shortly after their daily laboratory visits were terminated, but these skates were demolished within a few weeks and their parents report that they have had no skating experience except for the follow-up laboratory tests. Post-practice behavior of the children in getting off pedestals is similar to that of descending the slides, since no definite deterioration of motor skill was manifested by either of the boys. The pedestals ranged in height from 14-1/2 to 63-1/4 inches. At no time during the four-year interim has Johnny shown any loss of skill or hesitancy in getting off these pedestals.
