French neurologist. His work on hysteria and uses of hypnosis greatly impressed Freud and contributed to his studies of the unconscious. ALS signed “Charcot,” one page both sides, 4 x 5.25, personal letterhead, no date. Short letter to a Baron, whose invitation he can not follow. “I very much regret being unable to respond tomorrow to your invitations. If your daughter could go to the trouble of coming, she would be sure to find me at home between 3 and 4, and by representing the enclosed card she would not have to wait long.” The mentioned card is not present. Intersecting mailing folds, one through a single letter of signature, a few creases, and a small chip to right edge, otherwise fine condition. RRAuction COA.