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By: Richards, Theodore WilliamType: ArticleIn: Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledgeVolume: 42Series:Issue: 172Date: 1903Page Range: 28--36Publication Info: Philadelphia, American Philosophical Society,Subjects:
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By: Richards, Theodore WilliamType: ArticleIn: Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledgeVolume: 43Series:Issue: 176Date: 1904Page Range: 116--122Publication Info: Philadelphia, American Philosophical Society,Subjects: