From Rudolf Steiner's Spiritual Science, compiled with commentary by Ernst Hagemann.
Translated by Harold Jurgens.
An annotated bibliography for advanced study of Rudolf Steiner's indication in books and lectures about the etheric realm and its manifestation in the physical world. It is probably the only gathering in a systematic fashion of his many descriptions of the highly differentiated world of elemental beings.
104 pages.
28 x 21 cms.
Paperback.
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