Word: perfector
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Dates: during 1898-1898
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...graduated from Brown University in 1857. He was identified with Harvard from 1870, as assistant at the Observatory, then assistant professor of astronomy, to 1886. Since then he has held the chair of Astronomy and Physics at Colby University. As a devoted student of astronomy and the inventor and perfector of several instruments for work in Physics, Professor Rogers had attained a national reputation...
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