Anthroposophy and the Natural Sciences CW 75. Five public lectures and a disputation evening held in various cities in Switzerland and Germany between June 17, 1920 and May 11, 1922 by Rudolf Steiner. (for convenience these are just labeled lectures 1 through 8) Translated by Sabine Seiler.
PART I
1. Lecture 1: Spiritual Science, Natural Science, and Technology (Stuttgart, June 17, 1920)
2. Lecture 2: Discussion (Stuttgart, June 17, 1920)
PART II
3. Lecture 3: Anthroposophy: Its Essence and Its Philosophical Foundations (Bern, July 8, 1920)
4. Lecture 4: Natural Science and Anthroposophy (Zurich, June 4, 1921)
PART III
5. Lecture 5: Disputation Evening: On Natural-Scientific Questions (Zurich, June 4, 1921)
6. Lecture 6: Anthroposophy and Science (Basel, November 2, 1921)
7. Lecture 7: Agnosticism in Science (Leipzig, May 11, 1922)