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Report of the Secretary of the Smithsonian Institution ... - Smithsonian Institution (Smithsonian Institution], 1917)

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Report on the birds of Pennsylvania. With special reference to the food-habits, based on over three thousand stomach examinations - Pennsylvania. Ornithologist. (E.K. Meyers, State Printer, 1888)

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Report on the progress and condition of the U.S. National Museum for the year ending June 30 ... - United States National Museum (G.P.O, 1914)

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Societatum litterae (R. Friedländer, 1893)

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