Bollingen series -- 20

"Essays bearing on the contemporary scene and on the relation of the individual to society, including papers written during the 1920s and 1930s focusing on the upheaval in Germany, and two major works of Jung's last years, The Undiscovered Self and Flying Saucers."--publisher description (LoC)

"The original versions of both papers appeared some years ago, and they were published in English, under different titles, in the volume of Collected papers on analytical psychology edited by Constance Long (Second edition ... 1920) Of the first essay only the framework of its earlier form can be recognized and ... much new material has been added to the second essay."--Translator's pref.

Aion: Researches into the Phenomenology of the Self , originally published in German in 1951, is one of the major works of Jung's later years. The central theme of the volume is the symbolic representation of the psychic totality through the concept of the Self, whose traditional historical equivalent is the figure of Christ. Jung demonstrates his thesis by an investigation of the Allegoria Christi, especially the fish symbol, but also of Gnostic and alchemical symbolism, which he treats as phenomena of cultural assimilation. The first four chapters, on the ego, the shadow, and the anima and animus, provide a valuable summation of these key concepts in Jung's system of psychology.