The evolution of the Georgia Warm Springs Foundation feeder.

1 Executive Director, Georgia Warm Springs Foundation, Warm Springs, Ga. 31830; member, Committee on Prosthetics Research and Development, National Academy of Sciences—National Research Council, Washington, D. C. ingenious device" (Fig. 1). This apparatus was later called a "foot-operated feeder" because it required voluntary extension of her foot against a movable footboard on her wheelchair to bring about tilting of the seesaw cradle supporting her forearm. In this manner, she was able to feed herself. She used this device for twenty years and then returned to Warm Springs and was fitted with a far more efficient type with the imposing name "balanced forearm orthe-