Medicine: White House Physician

At the turn of the century, when John Willard Travell was a young physician building his practice and raising two daughters, frogs were still common in Manhattan. They came in handy: Dr. Travell wanted his daughters to become physicians, so he dissected the frogs in anatomy lessons for them and showed them the historic experiment in which Luigi Galvani discovered electric currents in a twitching frog's leg. The lessons took. Last week, to the quiet satisfaction of Dr. Travell, now retired at a ripe 91, Younger Daughter Janet, 59, became a big frog...

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