GA 223
| No. | Lecture Title | Book Title | Date | City |
|---|---|---|---|---|
| 1. | Lecture I | The Cycle of the Year as Breathing-Process of the Earth | 31 Mar 1923 | Dornach |
| 2. | Lecture II | The Cycle of the Year as Breathing-Process of the Earth | 01 Apr 1923 | Dornach |
| 3. | Lecture III | The Cycle of the Year as Breathing-Process of the Earth | 02 Apr 1923 | Dornach |
| 4. | Lecture IV | The Cycle of the Year as Breathing-Process of the Earth | 07 Apr 1923 | Dornach |
| 5. | Lecture V | The Cycle of the Year as Breathing-Process of the Earth | 08 Apr 1923 | Dornach |
| 6. | Lecture I | Michaelmas and the Soul-Forces of Man | 27 Sep 1923 | Vienna |
| 7. | Lecture II | Michaelmas and the Soul-Forces of Man | 28 Sep 1923 | Vienna |
| 8. | Lecture III | Michaelmas and the Soul-Forces of Man | 30 Sep 1923 | Vienna |
| 9. | Lecture IV | Michaelmas and the Soul-Forces of Man | 01 Oct 1923 | Vienna |