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By: Mason, William PittType: ArticleIn: Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledgeVolume: 46Series:Issue: 185Date: 1907Page Range: 110--116Publication Info: Philadelphia, American Philosophical Society,Subjects:
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By: Mason, William PittType: ArticleIn: Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledgeVolume: 48Series:Issue: 191Date: 1909Page Range: 67--68Publication Info: Philadelphia, American Philosophical Society,Subjects: