The four lectures in this volume were given in Vienna, September 27 to October 1, 1923. In the Collected Edition of Rudolf Steiner's works, the volume containing the German texts is entitled, Der Jahreskreislauf als Atmungsvorgang der Erde und die vief grossen Festeszeiten (Vol. 223 in the Bibliographic Survey).
Thanks to Karen Speerstra's donation, these lectures have been made available.
| Cover Sheet | ||
| Contents | ||
| Introduction | ||
| Publisher's Note | ||
| Translator's Note | ||
| I | Lecture I | September 27, 1923 |
| II | Lecture II | September 28, 1923 |
| III | Lecture III | September 30, 1923 |
| IV | Lecture IV | October 01, 1923 |