Dr. Hippolyte Bernheim (1840-1919) was a French neurologist and expert on hypnotism, which was a subject of fascination to late nineteenth-century physicians concerned with nervous disorders. Eventually becoming head of the school of psychotherapy at Nancy, Bernheim was a dogged opponent of Freud's one-time mentor Jean-Martin Charcot, who insisted that hypnosis could only be induced in hysterics as a by-product of their neurological deficiencies. Bernheim saw hypnosis as acting on a natural suggestibility present to some degree in all individuals. Freud, who met Bernheim only briefly, nevertheless translated two of his works into German.
Online edition of Bernheim's 'Suggestive Therapeutics', translated by Christian A. Herter, (1889)