In the years after 1907, which followed the union of the schools of Vienna and Zürich, psychoanalysis received that extraordinary impetus in which it still finds itself today. This is positively attested by the spread of psychoanalytic literature and the increase in the number of doctors who desire to practice or learn it, also by the mass of attacks upon it by congresses and learned societies. It has wandered into the most distant countries, it everywhere shocked psychiatrists, and has gained the attention of the cultured laity and workers in other scientific fields. Havelock Ellis, who has followed its development with sympathy without ever calling himself its adherent, wrote, in 1911, in a paper for the Australasian Medical Congress: “Freud’s psychoanalysis is now championed and carried out not only in Austria and in Switzerland, but in the United States, in England, India, Canada, and, I doubt not, in Australasia.”[5] A doctor from Chile (probably a German) appeared at the International Congress in Buenos Ayres, in 1910, and spoke on behalf of the existence of infantile sexuality and praised the results of psychoanalytic therapy in obsessions.[6] An English neurologist in Central India informed me through a distinguished colleague who came to Europe, that the cases of Mohammedan Indians on whom he had practiced analysis showed no other etiology of their neuroses than our European patients. The introduction of psychoanalysis into North America took place under particularly glorious auspices. In the autumn of 1909, Jung and myself were invited by President Stanley Hall, of Clark University, to take part in the celebration of the twentieth anniversary of the opening of Clark University, by giving some lectures in German. We found, to our great astonishment, that the unprejudiced men of that small but respected pedagogic-philosophical university knew all the psychoanalytic writings and had honored them in their lectures to their students. Thus even in prudish America one could, at least in academic circles, discuss freely and treat scientifically all those things that are regarded as offensive in life. The five lectures that I improvised at Worcester then appeared in English in the American Journal of Psychology; later on they were printed in German under the title, “Über Psychoanalyse.” Jung lectured on diagnostic association studies and on “conflicts in the psychic life of the child.” We were rewarded for it with the honorary degree of LL.D. During this week of celebration at Worcester, psychoanalysis was represented by five persons. Besides Jung and myself there were Ferenczi, who had joined me as travelling-companion, Ernest Jones, then of Toronto University (Canada), now in London, and A. A. Brill, who was already practising psychoanalysis in New York.