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By: Roberts, Solomon WType: ArticleIn: Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledgeVolume: 14Series:Issue: 94Date: 1875Page Range: 356--358Publication Info: Philadelphia, American Philosophical Society,Subjects:
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By: Roberts, Solomon WType: ArticleIn: Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledgeVolume: 12Series:Issue: 81Date: 1871Page Range: 581--586Publication Info: Philadelphia, American Philosophical Society,Subjects: