Cranefield publishes a letter dated November 21, 1907 from Joseph Breuer to Auguste Forel. Breuer delineates his role in the discovery of psychoanalysis. The observations which Freud credits to Breuer are those which Breuer claims for himself. It is also evident from the letter that Breuer did not believe it possible to treat hysteria without special skills and training. He credits himself with discovering the pathogenic significance of unconscious ideas and of realizing the importance of 'hypnoid states' and the disappearance of symptoms when unconscious ideas become conscious. He also takes credit for 'analytic therapy' by which, however, he does not mean the use of free association.