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Image Number D208-1

Portrait of pioneering USDA entomologist Charles Valentine Riley.

Photo by the National Agricultural Library.

To request a high-resolution digital image, please contact the National Agricultural Library, Rare and Special Collections by calling (301) 504-5876 or e-mailing

Para obtener mas información, se puede comunicar con la Unidad de Fotos Raras y Especiales por correo electrónico (


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