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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1914, in volume 66, pages 219-221
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Published in Michael Schuck Bebb letters to Asa Gray, 1859-2039, in 1889, pages 1
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Published in Bollettino Malacologico, in 2005, in volume 41, issue 5-8, pages 9-12
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Published in Rhodora, in 1933, in volume 35, issue 412, pages 140-145
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Published in Biol Bull, in 1974, in volume 147, pages 535-549
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Published in Mitteilungen der Münchner Entomologischen Gesellschaft, in 1980, in volume 70, pages 129-137
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Published in Asa Gray correspondence. Senders B-Ba, in 1891, pages 1-2
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Published in Asa Gray correspondence. Senders B-Ba, in 1891, pages 1-2
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Published in Asa Gray correspondence. Senders B-Ba, in 1891, pages 1-2
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Published in Asa Gray correspondence. Senders B-Ba, in 1891, pages 1-2
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Published in Asa Gray correspondence. Senders B-Ba, in 1890, pages 1-2
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Published in Asa Gray correspondence. Senders B-Ba, in 1890, pages 1-2
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Published in Asa Gray correspondence. Senders B-Ba, in 1890, pages 1-3
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Published in Asa Gray correspondence. Senders B-Ba, in 1890, pages 1-3
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Published in Asa Gray correspondence. Senders B-Ba, in 1891, pages 1-2
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Published in Asa Gray correspondence. Senders B-Ba, in 1888, pages 1-2
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Published in Asa Gray correspondence. Senders B-Ba, in 1890, pages 1-3
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Published in Asa Gray correspondence. Senders B-Ba, in 1890, pages 1-2
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Published in Asa Gray correspondence. Senders B-Ba, in 1888, pages 1-2
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Published in Asa Gray correspondence. Senders B-Ba, in 1890, pages 1-2
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Published in Asa Gray correspondence. Senders B-Ba, in 1891, pages 1
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Published in Asa Gray correspondence. Senders A, in 1891, pages 1-2
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Published in Asa Gray correspondence. Senders Be-Bo, in 1890, pages 1-2
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Published in Asa Gray correspondence. Senders Be-Bo, in 1888, pages 1
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Published in Asa Gray correspondence. Senders Be-Bo, in 1888, pages 1
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Published in Asa Gray correspondence. Senders Be-Bo, in 1889, pages 1-2
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Published in Rhodora, in 1964, in volume 66, issue 767, pages 311-312
Created: 2016-07-19, modified: 2016-07-19