The Principle Building of the Anthroposophical Society: The Johannesbau Click image for large view   The Mission of Spiritual Science AND OF Its Building at Dornach, Switzerland A LECTURE given at Liestal, Bâle, Jan. 11th, 1916, by Dr. RUDOLF STEINER Translated by A. M. WILSON Published with the Author's permission by H. J. HEYWOOD-SMITH, 47, Redcliffe Square, London. S.W. 1917 Printed in Great Britain.