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© 2008 University of Chicago Library
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When quoting material from this collection, the preferred citation is: Jeffries, Benjamin Joy. Correspondence, Crerar Ms 202, Hanna Holborn Gray Special Collections Research Center, University of Chicago Library
Consists of nine ALS from Benjamin Joy Jeffries, Boston, to Mr. Koehler, 1877 Sept. 19-1891 Sept. 28. Topic of letters relates to the diagnosis of color blindness.
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