French surgeon and biologist (1873–1944) who won the Nobel Prize in Medicine in 1912. ALS in French, one page, 5.25 x 6.75, Rockefeller Institute letterhead, no date. Letter in French to a lady. In part (translated): “I will be delighted to dine with you and the Duke of Richelieu tomorrow.” In fine condition. RRAuction COA.
