| Unidentified photographer/creator Anthropometry exhibit 1923 (published) Book illustration Creative Commons - Wikipedia LL/40693 Harry H. Laughlin, The Second International Exhibition of Eugenics held September 22 to October 22, 1921, in connection with the Second International Congress of Eugenics in the American Museum of Natural History, New York, (Baltimore: William & Wilkins Co., 1923).
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