Jung's last major work, completed in his 81st year, on the synthesis of the opposites in alchemy and psychology.

Mysterium Coniunctionis was first published in the Collected Works of C.G. Jung in 1963. For this second edition of the work, numerous corrections and revisions have been made in cross-references to other volumes of the Collected Works now available and likewise in the Bibliography. Mysterium Coniunctionis was Jung's last work of book length and gives a final account of his lengthy researches in alchemy. It was Jung's empirical discovery that certain key problems of modern man were prefigures in what t he alchemists called their 'art' or 'process'. Jung maintained that 'the world of alchemical symbols does not belong to the rubbish heap of the past, but stands in a very real and living relationship to our most recent discoveries concerning the psychology of the unconscious'. The volume includes ten plates, a Bibliography, an Index, and an Appendix of original Latin and Greek texts quoted in the work.