German physiologist (1854-1917) who received the 1901 Nobel Prize in Physiology or Medicine. ALS in German, signed “E. Behring,” one page both sides, 4 x 6.25, Villa Behring letterhead, April 2, 1896. Untranslated letter to a colleague. In fine condition, with bisecting horizontal fold, and a touch of trivial soiling. RRAuction COA.