GA 193
| Date | Title | City |
|---|---|---|
| 04 Feb 1919 | Inner Aspects of the Social Riddle I | Zürich |
| 08 Feb 1919 | Inner Aspects of the Social Riddle II | Bern |
| 11 Feb 1919 | Inner Aspects of the Social Riddle III | Zürich |
| 09 Mar 1919 | Inner Aspects of the Social Riddle IV | Zürich |
| 12 Jun 1919 | Inner Aspects of the Social Riddle V | Heidenheim |
| 12 Sep 1919 | Inner Aspects of the Social Riddle VI | Berlin |
| 13 Sep 1919 | Inner Aspects of the Social Riddle VII | Berlin |
| 14 Sep 1919 | Inner Aspects of the Social Riddle VIII | Berlin |
| 27 Oct 1919 | Inner Aspects of the Social Riddle IX | Zürich |
| 04 Nov 1919 | Inner Aspects of the Social Riddle X | Bern |