Two lectures delivered in St. Gallen, Switzerland, in November of 1917. Authorized translation from the German of Notes unrevised by the lecturer. Published by kind permission of the Rudolf Steiner Nachlassverwaltung, Dornach, Switzerland.
A part of Steiner's Lectures to Members, these are lectures 5 and 6 of nine lectures in the volume: Individual Spiritual Beings Working in the Human Soul. Published in German as: Individuelle Geistwesen und Ihr Wirken in der Seele des Menschen. Geistige Wesen und ihre Wirkungen. Also known as: Hidden Forces in the Being of Man (vol. 178 in the Bibliographic Survey).
|I.||Knowledge of the Supersensible and Riddles of the Human Soul||November 15, 1917|
|II.||The Mystery of the Double: Geographic Medicine||November 16, 1917|