RORSCHACH, Hermann (1884-1922, psychoanalyst, inventor of the Rorschach inkblot test). Autograph letter signed ('Rorschach') to the Director of the Burghölzli insitute, 'Irrenanstalt Münsterlingen', 27 February 1913, returning case studies ('Krankengeschichten') for three patients, and asking for notes on a fourth, one page, oblong 8vo (punch holes to left margin).