French physiologist (1850–1935) who won the 1913 Nobel Prize in Medicine for his work in anaphylaxis, which led to advances in the treatment of allergies. ALS in French, one page, 6.75 x 8.25, personal letterhead, July 1, 1909. Letter to an unidentified woman. In full (translated): “I have not forgotten the promise I made you but unfortunately Madame B, whom I had mentioned to you, is presently ill. I had therefore to write to another person, and I am expecting her answer.” In very good condition, with central horizontal and vertical fold, with vertical fold passing through first letter of signature, uniform toning, and scattered creases and wrinkles. RRAuction COA.
