Oscar Dana Allen
Oscar Dana Allen ( – ) was a professor of chemistry at Yale University and a prolific researcher and collector of bryophytes. Oscar Dana Allen was born on  in Hebron, Maine. He was graduated at Yale's Sheffield Scientific School in 1861, and ten years later he received the degree of doctor of philosophy for original investigations, having in the meantime been an assistant professor there. In 1871 he became professor of metallurgy and assaying, and in 1873 was appointed to the chair of analytical chemistry and metallurgy. Allen's researches have been chiefly on the rare elements caesium and rubidium. These investigations and his other scientific papers have appeared principally in the American Journal of Science. The latest American edition of Fresenius's Quantitative Analysis (New York, 1881) was edited and revised by him. He was a member of numerous scientific societies. Oscar Dana Allen died on 19 February 1913 in Ashford, Washington. References 

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1913 deaths
1836 births
American bryologists
Yale University faculty