^{page 107 note 1} Olberg, Paul, “Karl Kautsky als Kandidat für den Nobel-Friedenspreis”, in: Ein Leben für den Sozialismus, Erinnerungen an Karl Kautsky (Hannover, 1954).Google Scholar

^{page 108 note 1} Among other omissions involving his connection with the social-democratic movement after the Georgian episode, Woytinsky had chosen not to mention this long friendship in his autobiography in which Kautsky's name is not even mentioned. See Stormy Passage (New York, 1961). Woytinsky, Emma S.describes the circumstances of meeting Kautsky and the subsequent friendship in Two Lives in One (New York, 1965), p. 127.Google Scholar

^{page 108 note 2} E. S. Woytinsky, op. cit., pp. 110–12.

^{page 108 note 3} Letters to Levitas and Lee are in the Internationaal Instituut voor Sociale Geschiedenis.

^{page 108 note 4} See his letter of January 19, 1921, in Einstein on Peace, ed. by Otto Nathan and Heinz Norden (New York, 1960), p. 41.Google Scholar

^{page 108 note 5} Amt, Auswärtiges, Die Deutschen Documente zum Kriegsausbruch, gesammelt von Karl Kautsky (Berlin, 1919), 4 volsGoogle Scholar, and what Kautsky characterized as his “comments”: Wie der Weltkrieg Entstand: Dargestellt nach dem Akten-material des Deutschen Auswärtigen Amtes (Berlin, 1919).Google Scholar See “Mein Lebens-werk”, in: Ein Leben für den Sozialismus, p. 31.

^{page 109 note 1} Clark, Ronald W., Einstein: The Life and Times (New York and Cleveland, 1970).Google Scholar

^{page 109 note 2} For Einstein's subsequent involvement with pacifist and similar committees, commissions and congresses, see the item quoted above, p. 108, note 4.