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By: Barrows, W. M.Type: ArticleIn: The Ohio journal of scienceVolume: 19Series:Issue:Date: 1919Page Range: 355--360Publication Info: Columbus, Ohio, Ohio Academy of Science,Subjects:
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By: Barrows, W. M.Type: ArticleIn: The Ohio journal of scienceVolume: 19Series:Issue:Date: 1919Page Range: 210--212Publication Info: Columbus, Ohio, Ohio Academy of Science,Subjects: