Published in Journal of The Washington Academy of Sciences, in 1933, in volume 23, pages 355-357
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Published in Journal of The Washington Academy of Sciences, in 1943, in volume 33, pages 183-189
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Published in Jour Washington Acad Sci, in 1954, in volume 44, pages 82-85
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Published in Journal of The Washington Academy of Sciences, in 1933, in volume 23, pages 138-141
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Published in Journal of The Washington Academy of Sciences, in 1933, in volume 23, pages 200-202
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Published in Journal of the Washington Academy of Sciences, in 1953, in volume 43, pages 29-43
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Published in Journal of the Washington Academy of Sciences, in 1957, in volume 47, pages 309-315
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Published in Journal of The Washington Academy of Sciences, in 1934, in volume 24, pages 395-402
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Published in Botanical Gazette, in 1919, in volume 67, issue 1, pages 65-83
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Published in Botanical Gazette, in 1919, in volume 67, issue 2, pages 147-168
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Published in Jour Washington Acad Sci, in 1930, in volume 20, pages 398-418
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Published in Journal of the Washington Academy of Sciences, in 1955, in volume 45, pages 49-56
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Published in Jour Washington Acad Sci, in 1959, in volume 49, pages 106-112
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Published in Jour Washington Acad Sci, in 1942, in volume 32, pages 343-349
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Published in Amphibian & Reptile Conservation, in 2020, in volume 14, issue 2, pages 64-72
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Published in The Auk, in 1919, in volume 36, pages 600-601
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Published in Ibis, in 1892, in volume 4, issue 4, pages 581-582
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Published in Nautilis, in 1923, in volume 36, pages 103-104
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Published in Discovery reports, in 1936, in volume 12, pages 59-193
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Published in The Auk, in 1914, in volume 31, pages 415
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1858, pages 1-3
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1859, pages 1-3
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), pages 1
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1860, pages 1-3
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1854, pages 1-5
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1854, pages 1-2
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1854, pages 1
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1857, pages 1-2
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1858, pages 1-3
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1855, pages 1
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1856, pages 1-3
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1854, pages 1
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The life histories of South African Colotis erone, C. ione, C. vesta and Leptosia alcesta (Pieridae)
Published in Journal of Research on the Lepidoptera, in 1967, in volume 6, pages 31-42
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1860, pages 1-2
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1857, pages 1-2
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1860, pages 1-2
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Published in Phytologia, in 1984, in volume 54, issue 7, pages 479-485
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Published in Asa Gray correspondence. Senders Ca-Cl, in 1890, pages 1-2
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), pages 1
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Published in Ibis, in 1860, in volume 2, issue 4, pages 428-432
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Published in Nautilus, in 1914, in volume 28, pages 4-5
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Published in The Auk, in 1895, in volume 12, pages 259-270
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Published in Discovery Reports Cambridge, in 1930, in volume 2, pages 1-222
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