Set of two original letters: first is a thin leaf handwritten letter from George Sarton to Nicholas C. Polos discussing personal matters, signed and dated November 20, 1952, sent from the "Union Internationale D'Historie Des Sciences" and including the US address; second letter is a typewritten (typescript) bibliography of George Sarton's works. Both are a gift to Nicholas C. Polos, Associate Professor of History, La Verne College in La Verne, California. Addressed from 5 Channing Place, Cambridge 38, Massachusetts USA.
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