| I. | The Humanities and the Future of Humanity | December 9, 1910 |
| II. | How to Refute Theosophy? | November 27, 1911 |
| III. | How to Justify Theosophy? | November 29, 1911 |
| IV. | How to Refute Theosophy? | January 8, 1912 |
| V. | How to Justify Theosophy? | January 10, 1912 |
| VI. | The Tasks of Spiritual Research for the Future | September 25, 1912 |
| VII. | Spiritual Science and Human Life | September 26, 1912 |
| VIII. | Truths of Spiritual Research | January 2, 1913 |
| IX. | Errors of Spiritual Research | January 3, 1913 |
| X. | Truths and Fallacies of Spiritual Research | January 11, 1913 |
| XI. | Truths and Fallacies of Spiritual Research | May 14, 1913 |
| XII. | Spiritual Science and the Spiritual Goals of Our Time | November 8, 1913 |
| XIII. | Theosophy and Anti-theosophy | November 10, 1913 |
| XIV. | Spiritual Science and the Spiritual World Outlook on the Goals of Our Time | December 7, 1913 |
| XV. | Theosophy and Anti-theosophy | December 9, 1913 |
| XVI. | Spiritual Science and the Spiritual World Outlook on the Goals of Our Time | January 3, 1914 |
| XVII. | Theosophy as a Lifelong Pursuit | January 4, 1914 |
| XVIII. | Spiritual Science and the Spiritual Goals of Our Time | December 1, 1913 |
| XIX. | Theosophy and Anti-theosophy | January 27, 1914 |
| XX. | Spiritual Science in Its Relationship to Religious and Social Movements of the Present Day | March 13, 1911 |
| XXI. | Spiritual Science and the Future of Humanity | January 30, 1911 |
| XXII. | Zarathustra, His Teaching and His Mission | January 31, 1911 |
| XXIII. | The Nature of Spiritual-scientific Knowledge and its Significance for Human Life | May 17, 1912 |
| XXIV. | The Task and Goal of Spiritual Science and Spiritual Seeking in the Present Day | March 4, 1914 |
