1 [A condensed version of ch. II of “Synchronicity: An Acausal Connecting Principle” (C.W., vol. 8). Published as “Ein astrologisches Experiment,” Zeitschrift für Parapsychologie und Grenzgebiete der Psychologie (Bern), I:2/3 (May 1958), 81–92. A long prefatory note by the editor, Hans Bender, quoted a letter to him from Jung, 12 Feb. 1958, in further clarification; it is in Letters, ed. G. Adler, vol. 2.]
2 [Jung and Pauli, Naturerklärung und Psyche, 1952.]
3 [G. Spencer-Brown, “Statistical Significance in Psychical Research,” Nature, vol. 172, 25 July 1953, p. 154.]
4 [The following two paragraphs, not represented in the Zeitschrift version, were added by Jung respectively to the German MS and to a letter containing queries sent to him by the translator, 23 April 1954.]
5 With all due respect to their statistical nature! (C.G.J.)
6 [Albert Einstein.]
7 [Cf. “On the Nature of the Psyche” (C.W., vol. 8), pars. 397ff.]