The boundaries of natural science :
eight lectures given in Dornach, Switzerland, September 27-October 3, 1920 /
by Rudolf Steiner ; with a foreword by Saul Bellow.
|Main Author:||Steiner, Rudolf, 1861-1925.|
|Language(s):||English ; German|
Spring Valley, N.Y. : Anthroposophic Press, c1983.
"Translated by Frederick Amrine and Konrad Oberhuber from shorthand reports unrevised by the lecturer, from the 4th edition (1969) of the German text published under the title Grenzen der Naturerkenntnis (Vol. 322 in the Bibliographic survey)"--T.p. verso.
xiii, 125 p. ;
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