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About: A. R. Crook     Goto   Sponge   NotDistinct   Permalink

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Alja Robinson Crook (June 17, 1864 – May 31, 1930) was an American scientist and academic from Ohio. Crook attended Ohio Wesleyan University and received a Ph.D. in Europe in 1892. He was a professor of mineralogy and economic geology at Northwestern University from 1893 to 1906, when he was named Illinois State Geologist. As state geologist, he greatly expanded the state museum.