GA 243
| Date | Title | City |
|---|---|---|
| 11 Aug 1924 | Nature is the Great Illusion. "Know Thou Thyself" | The Hague |
| 12 Aug 1924 | The Three Worlds and Their Counter-Images | The Hague |
| 13 Aug 1924 | Initiation-Consciousness. The True and False Paths of Spiritual Investigation III | The Hague |
| 14 Aug 1924 | The Secrets of Exploring Other Worlds Through the Metamorphosis of Consciousness | The Hague |
| 15 Aug 1924 | The Enlivening of the Soul by Metallic Properties | The Hague |
| 16 Aug 1924 | Initiation Knowledge | The Hague |
| 18 Aug 1924 | Star Knowledge | The Hague |
| 19 Aug 1924 | Possibilities of Aberation in Spiritual Research | The Hague |
| 20 Aug 1924 | Abnormal Paths in the Spiritual World and Their Correction | The Hague |
| 21 Aug 1924 | Initiation-Consciousness. The True and False Paths of Spiritual Investigation X | The Hague |
| 22 Aug 1924 | How Does it Stand with the Understanding of Spiritual Research? | The Hague |