Published in Proceedings of The American Philosophical Society, in 1903, in volume 42, issue 172, pages 3-4

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Published in Proceedings of The American Philosophical Society, in 1903, in volume 42, issue 172, pages 4

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Published in Proceedings of The American Philosophical Society, in 1903, in volume 42, issue 172, pages 5

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Published in Proceedings of The American Philosophical Society, in 1903, in volume 42, issue 172, pages 6

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Published in Proceedings of The American Philosophical Society, in 1903, in volume 42, issue 172, pages 11-14

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Published in Proceedings of The American Philosophical Society, in 1903, in volume 42, issue 172, pages 28-36

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Published in Proceedings of The American Philosophical Society, in 1903, in volume 42, issue 172, pages 36-54

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Published in Proceedings of The American Philosophical Society, in 1903, in volume 42, issue 173, pages 162-165

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Published in Proceedings of The American Philosophical Society, in 1903, in volume 42, issue 173, pages 165-170

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Published in Proceedings of The American Philosophical Society, in 1903, in volume 42, issue 173, pages 170-179

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Published in Proceedings of The American Philosophical Society, in 1903, in volume 42, issue 173, pages 179-188

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Published in Proceedings of The American Philosophical Society, in 1903, in volume 42, issue 173, pages 188-199

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Published in Proceedings of The American Philosophical Society, in 1903, in volume 42, issue 173, pages 199-211

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Published in Proceedings of The American Philosophical Society, in 1903, in volume 42, issue 174, pages 268-274

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Published in Proceedings of The American Philosophical Society, in 1903, in volume 42, issue 174, pages 378-396

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Published in Proceedings of The American Philosophical Society, in 1903, in volume 42, issue 174, pages 397-404

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