Three lectures given in Berlin on the 19th and 26th of February, and the 5th of March, 1906. This is the authorized translation from shorthand reports unrevised by the lecturer. The translator is unknown.
The original German texts of these lectures can be found in the Collected Edition of Rudolf Steiner's works, No. 94 in the Bibliographical Survey, 1961.
|I.||Lecture I||February 19, 1906|
|II.||Lecture II||February 26, 1906|
|III.||Lecture III||March 5, 1906|