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Published in Journal of Raptor Research, in 1989, in volume 23, issue 2, pages 49-52

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Published in The Wilson Bulletin, in 1960, in volume 72, issue 3, pages 253-273

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Published in Journal of Raptor Research, in 1987, in volume 21, issue 2, pages 68-70

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Published in The Wilson Bulletin, in 1959, in volume 71, issue 3, pages 220-236

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Published in Proceedings of the United States National Museum, in 1926, in volume 66, pages 1-15

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Published in Proc. Biol. Soc. Washington, in 1933, in volume 46, pages 33-35

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Published in Proc. Biol. Soc. Wash, in 1928, in volume 41, pages 45-48

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Published in Proc. Biol. Soc. Washington, in 1928, in volume 41, pages 169-170

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Published in Annals of Tropical Medicine & Parasitology, in 1925, in volume 19, issue 1, pages 137-139

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Published in Proc. Biol. Soc. Washington, in 1927, in volume 40, pages 91-92

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Published in Proceedings of The Biological Society of Washington, in 1932, in volume 45, pages 183-187

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Published in Zoologica New York, in 1956, in volume 41, pages 11-12

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Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, pages 174-177

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Published in Journal of The Washington Academy of Sciences, in 1923, in volume 13, pages 225-226

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Published in Breviora, in 1963, in volume 186, pages 1-13

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Published in Biol Bull, in 1911, in volume 20, pages 332-349

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Published in Proceedings of The Biological Society of Washington, in 1938, in volume 51, pages 41-42

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Published in Jour Washington Acad Sci, in 1948, in volume 38, pages 316-318

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Published in Journal of The Washington Academy of Sciences, in 1926, in volume 16, pages 446-447

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Published in Torreya, in 1906, in volume 6, issue 9, pages 189-195

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Published in Nautilis, in 1918, in volume 31, pages 136-137

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Published in Phytologia, in 1972, in volume 23, issue 5, pages 455-459

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Published in Botanical Gazette, in 1882, in volume 7, issue 5, pages 64

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Published in Rhodora, in 1921, in volume 23, issue 271, pages 177-179

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Published in Rhodora, in 1931, in volume 33, issue 393, pages 193-198

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Published in Rhodora, in 1918, in volume 20, issue 232, pages 63-64

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Published in Proceedings of The Biological Society of Washington, in 1938, in volume 51, pages 93-94

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Published in Proceedings of The Biological Society of Washington, in 1923, in volume 36, pages 91-92

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Published in Journal of the Washington Academy of Sciences, in 1923, in volume 13, pages 185-186

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Published in Journal of the Washington Academy of Sciences, in 1923, in volume 13, pages 184-185

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Published in Entomologische Zeitung Stettin, in 1857, in volume 18, pages 375-380

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Published in Torreya, in 1907, in volume 7, issue 2, pages 35-36

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Published in Torreya, in 1907, in volume 7, issue 12, pages 235-236

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Published in The Auk, in 1885, in volume 2, pages 222-223

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Published in The Auk, in 1919, in volume 36, pages 147-148

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Published in Botanical Gazette, in 1879, in volume 4, issue 9, pages 209-210

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Published in Botanical Gazette, in 1883, in volume 8, issue 1, pages 157-159

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Published in Botanical Gazette, in 1889, in volume 14, issue 6, pages 158

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Published in Fieldiana (Zool.), in 1961, in volume 39, pages 543-546

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Published in Biol Bull, in 1975, in volume 148, pages 393-401

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Published in Torreya, in 1918, in volume 18, issue 4, pages 71-74

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Published in Torreya, in 1925, in volume 25, issue 1, pages 10-11

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Published in The Auk, in 1897, in volume 14, pages 331-332

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