GA 351
| No. | Lecture Title | Book Title | Date | City |
|---|---|---|---|---|
| 1. | On the Nature of Butterflies | 08 Oct 1923 | Dornach | |
| 2. | Lecture for the Workers at the Goetheanum | Not Yet Available | 10 Oct 1923 | Dornach |
| 3. | Man and Earth in North and South | Not Yet Available | 13 Oct 1923 | Dornach |
| 4. | On the Nature of Hydrogen | Not Yet Available | 20 Oct 1923 | Dornach |
| 5. | On the Nature of Comets | Not Yet Available | 24 Oct 1923 | Dornach |
| 6. | Effects of Substances in the Cosmos and in the Human Body | Cosmic Workings In Earth and Man | 27 Oct 1923 | Dornach |
| 7. | On the Growth of Plants | Cosmic Workings In Earth and Man | 31 Oct 1923 | Dornach |
| 8. | Remarks to the Workers at the Goetheanum Relating to a Lecture by Beekeeper Mueller on Beekeeping | Not Yet Available | 10 Nov 1923 | Dornach |
| 9. | Lecture II | Nine Lectures on Bees | 26 Nov 1923 | Dornach |
| 10. | Lecture III | Nine Lectures on Bees | 28 Nov 1923 | Dornach |
| 11. | Lecture IV | Nine Lectures on Bees | 01 Dec 1923 | Dornach |
| 12. | Lecture V | Nine Lectures on Bees | 05 Dec 1923 | Dornach |
| 13. | Lecture VI | Nine Lectures on Bees | 10 Dec 1923 | Dornach |
| 14. | Lecture VII | Nine Lectures on Bees | 12 Dec 1923 | Dornach |
| 15. | Lecture VIII | Nine Lectures on Bees | 15 Dec 1923 | Dornach |
| 16. | Lecture IX | Nine Lectures on Bees | 22 Dec 1923 | Dornach |