Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1897, in volume 49, pages 91-133

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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1897, in volume 49, pages 134

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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1897, in volume 49, pages 145

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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1897, in volume 49, pages 146-152

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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1897, in volume 49, pages 161-165

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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1897, in volume 49, pages 168

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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1897, in volume 49, pages 204-226

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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1897, in volume 49, pages 288-289

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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1897, in volume 49, pages 290-298

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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1897, in volume 49, pages 299-302

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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1897, in volume 49, pages 303-312

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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1897, in volume 49, pages 333

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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1897, in volume 49, pages 356

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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1897, in volume 49, pages 368-372

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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1897, in volume 49, pages 465-476

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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1897, in volume 49, pages 503-504

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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1897, in volume 49, pages 505-518

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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1897, in volume 49, pages 522-529

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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1897, in volume 49, pages 539-542

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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1897, in volume 49, pages 542-545

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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1897, in volume 49, pages 549-550

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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1897, in volume 49, pages 552

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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1897, in volume 49, pages 555-556

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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1897, in volume 49, pages 557-564

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Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1897, in volume 1897, pages 360-367

Created: 2010-11-22, modified: 2011-06-21