Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge 28
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american philosophical society
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Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge 30
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american philosophical society
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Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge 29
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american philosophical society
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Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge 31
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american philosophical society
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Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge 34
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american philosophical society
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Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge 35
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american philosophical society
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Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge 36
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american philosophical society
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Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge 37
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american philosophical society
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Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge 38
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american philosophical society
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