Steiner's lectures in Frankfurt
11 lectures in 9 volumes of the collected works.
| GA | Title | When | Where | Size |
|---|---|---|---|---|
| 68a | The Essence of Christianity | 1903 to 1910 | Weimar, Leipzig, Düsseldorf | 56 lectures |
| 68c | Goethe and the Present | 1889 to 1912 | Berlin, Munich, Leipzig | 35 lectures |
| 69a | Truths and Errors in Spiritual Research | 1911 to 1913 | Munich, Prague, Stuttgart | 10 lectures |
| 80a | The Essence of Anthroposophy | 1921 to 1922 | Berlin, Cologne, Mannheim | 13 lectures |
| 98 | Nature and Spirit Beings | 1907 to 1908 | Munich, Cologne, Stuttgart | 18 lectures |
| 127 | The Mission of the New Spirit Revelation | 1911 | Berlin, Munich, Basel | 17 lectures |
| 140 | Occult Investigations into Life Between Death and Rebirth | 1912 to 1913 | Munich, Bergen, Milan | 20 lectures |
| 246 | Supplements to Member Lectures | 1904 to 1924 | Dornach, Berlin, Stuttgart | 84 lectures |
| 277c | The Origin and Development of Eurythmy 1920–1922 | 1920 to 1922 | Dornach, Stuttgart, Berlin | 119 lectures |