Science: Philosophers in Philadelphia

Neat little trucks from Holland's, locally famed Negro caterer, pulled up at the cellar door of the American Philosophical Society's Georgian brick building on Philadelphia's Independence Square last week, disgorging trays of fried oysters, crab cutlets, apple salad and fancy cakes. To sleepy loungers in the Square this was a sure sign that the Philosophical Society, oldest and one of the richest of U. S. scientific bodies, was holding its spring meeting.

To the Society's well-fed members, Dr. Alexis Carrel described the latest accomplishments of the "perfusion pump" designed with his help by...

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