GA 325
| No. | Lecture Title | Book Title | Date | City |
|---|---|---|---|---|
| 1. | Lecture I | European Spiritual Life in the 19th Century | 15 May 1921 | Dornach |
| 2. | Lecture II | European Spiritual Life in the 19th Century | 16 May 1921 | Dornach |
| 3. | Lecture I | Natural Science and the Historical Development of Humanity | 21 May 1921 | Stuttgart |
| 4. | Lecture II | Natural Science and the Historical Development of Humanity | 22 May 1921 | Stuttgart |
| 5. | Lecture III | Natural Science and the Historical Development of Humanity | 23 May 1921 | Stuttgart |
| 6. | Lecture IV | Natural Science and the Historical Development of Humanity | 24 May 1921 | Stuttgart |