German doctor and politician (1821-1902), dubbed the 'Father of Pathology,' who founded the field of social medicine. ALS in German, signed “R. Virchow,” one page, 5 x 7.75, personal letterhead, April 9, 1878. Untranslated handwritten letter by Virchow. In fine condition, with a small rusty paperclip impression to the top edge, and slight ink offsetting from premature folding.
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