GA 66
| No. | Lecture Title | Book Title | Date | City |
|---|---|---|---|---|
| 1. | The Human Soul and the Human Body | The Human Soul and the Human Body | 15 Feb 1917 | Berlin |
| 2. | Riddles of the Soul and Riddles of the Universe | The Human Soul and the Human Body | 17 Feb 1917 | Berlin |
| 3. | The Immortal Soul, The Power of Fate and the Course of Human Life | Untranslated | 01 Mar 1917 | Berlin |
| 4. | Human Soul and Human Body in Natural and Spiritual Knowledge | Untranslated | 15 Mar 1917 | Berlin |
| 5. | The Riddle of the Soul and the Riddle of the Universe: Research and Observation in German Spiritual Life | Untranslated | 17 Mar 1917 | Berlin |
| 6. | Life, Death and the Immortality of the Soul in the Universe | Untranslated | 22 Mar 1917 | Berlin |
| 7. | Beyond the Senses and Beyond the Soul | Untranslated | 31 Mar 1917 | Berlin |