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The Rudolf Steiner Archive

a project of Steiner Online Library, a public charity

GA 91

No. Lecture Title Book Title Date City
1. Lecture One Color Theory and Light 2 Aug 1903 Berlin
2. Lecture Two Color Theory and Light 3 Aug 1903 Berlin
3. Lecture Three Color Theory and Light 4 Aug 1903 Berlin
4. Lecture Four Color Theory and Light 6 Aug 1903 Berlin
5. Lecture Five Color Theory and Light 8 Aug 1903 Berlin
6. Lecture Six Color Theory and Light 9 Aug 1903 Berlin
7. Lecture Seven Color Theory and Light 10 Aug 1903 Berlin
16. States of Consciousness Inner and Outer Evolution 31 Aug 1904 Berlin
17. Manas as Light and Love Inner and Outer Evolution 3 Sep 1904 Berlin
18. Inner Evolution Since Lemurian Times Inner and Outer Evolution 4 Sep 1904 Berlin
19. The Fall into the Material Inner and Outer Evolution 5 Sep 1904 Berlin
20. From the Arhats to the Mahatmas Inner and Outer Evolution 6 Sep 1904 Berlin
21. After the so-called Flood of Sin Inner and Outer Evolution 8 Sep 1904 Berlin
22. The Transition from the Atlantean Race to Our Own Inner and Outer Evolution 10 Sep 1904 Berlin
23. The Three Worlds Man, Nature and the Cosmos 17 Jun 1905 Berlin
24. The Beings of Our Cosmos Man, Nature and the Cosmos 18 Jun 1905 Berlin
25. The Inner Connections of the Seven Basic Principles Man, Nature and the Cosmos 20 Jun 1905 Berlin
26. The Designation Of The Days Of The Week Man, Nature and the Cosmos 21 Jun 1905 Berlin
27. The Seven Seasons in Connection with Cosmology Man, Nature and the Cosmos 23 Jun 1905 Berlin
29. The Process of Incarnation in Connection with Heavenly Relations Man, Nature and the Cosmos 25 Jun 1905 Berlin
30. Evolutionary Laws of Inner Karma Man, Nature and the Cosmos 27 Jun 1905 Berlin
42. Light, Heat, Sound Man, Nature and the Cosmos 26 Aug 1905 Berlin
43. The Eye and Ear Man, Nature and the Cosmos 27 Aug 1905 Berlin
44. The Future of the Seeing and Hearing Man, Nature and the Cosmos 28 Aug 1905 Berlin
45. The Relationship Between the Natural and Etheric Realms Man, Nature and the Cosmos 29 Aug 1905 Berlin
46. Mars, Mercury and Jupiter's Effect on the Formation of the Human Ego Man, Nature and the Cosmos 2 Sep 1905 Berlin
47. The Seven-Membered Human Being Man, Nature and the Cosmos 4 Sep 1905 Berlin
31. The Consciousness Soul Man, Nature and the Cosmos 30 Jun 1904 Berlin
48. The Difference Between Calculation and Operation Notes from Mathilde Scholl 1904–1906 19 Oct 1904 Berlin
49. Ellipse, Hyperbola, Lemniscate, Circle Notes from Mathilde Scholl 1904–1906 26 Oct 1904 Berlin
50. Trigonometry Notes from Mathilde Scholl 1904–1906 4 Nov 1904 Berlin
51. Sine, Cosine, Tangent, Cotangent Notes from Mathilde Scholl 1904–1906 9 Nov 1904 Berlin
8. On Meditation I Inner and Outer Evolution 17 Aug 1904 Graal
9. On Meditation II Inner and Outer Evolution 18 Aug 1904 Graal
11. Helpful Concepts for Understanding the New Testament Inner and Outer Evolution 20 Aug 1904 Graal
12. Helpful Concepts for Understanding the Days of the Week Inner and Outer Evolution 21 Aug 1904 Graal
13. Form, Life, Consciousness Inner and Outer Evolution 22 Aug 1904 Graal
14. The Three Realms of Nature Inner and Outer Evolution 26 Aug 1904 Graal
10. Helpful Concepts for Understanding Ancient Legends and the New Testament Inner and Outer Evolution 19 Aug 1904 Graal
15. Evolution And Involution Inner and Outer Evolution 30 Aug 1904 Graal
32. Colors and Sounds Man, Nature and the Cosmos 6 Aug 1905 Haubinda
33. The Elemental Realms Man, Nature and the Cosmos 7 Aug 1905 Haubinda
34. Moon Sense-Organs Man, Nature and the Cosmos 8 Aug 1905 Haubinda
35. Elemental Beings Man, Nature and the Cosmos 9 Aug 1905 Haubinda
36. The Philosopher's Stone Man, Nature and the Cosmos 10 Aug 1905 Haubinda
37. Evolution and the Hierarchies Man, Nature and the Cosmos 11 Aug 1905 Haubinda
38. Forms of Consciousness Man, Nature and the Cosmos 12 Aug 1905 Haubinda
39. The Twelve Levels of Consciousness in Relation to the Etheric Body Man, Nature and the Cosmos 13 Aug 1905 Haubinda
40. Reincarnation Man, Nature and the Cosmos 14 Aug 1905 Haubinda
41. The Christ Man, Nature and the Cosmos 15 Aug 1905 Haubinda
52. The Fourth Dimension I Notes from Mathilde Scholl 1904–1906 21 Aug 1906 Landin
53. The Fourth Dimension II Notes from Mathilde Scholl 1904–1906 23 Aug 1906 Landin
54. The Fourth Dimension III Notes from Mathilde Scholl 1904–1906 25 Aug 1906 Landin
55. The Fourth Dimension IV Notes from Mathilde Scholl 1904–1906 27 Aug 1906 Landin
56. Christ And Luzifer Notes from Mathilde Scholl 1904–1906 31 Aug 1906 Landin
57. The Molten Sea Notes from Mathilde Scholl 1904–1906 31 Aug 1906 Landin
58. The Interconnection Between the Three Worlds and the Natural World Notes from Mathilde Scholl 1904–1906 1 Sep 1906 Landin
64. On the Creator's Word Notes from Mathilde Scholl 1904–1906 11 Sep 1906 Landin
65. The Meaning of Christ-Jesus Notes from Mathilde Scholl 1904–1906 12 Sep 1906 Landin
66. The World Center, Christ, The I Notes from Mathilde Scholl 1904–1906 13 Sep 1906 Landin
67. The Connection Between the Spiritual and Physical Worlds Notes from Mathilde Scholl 1904–1906 14 Sep 1906 Landin
70. Evolution and Involution Notes from Mathilde Scholl 1904–1906 16 Sep 1906 Landin
71. Substance and Power Notes from Mathilde Scholl 1904–1906 18 Sep 1906 Landin
72. Power and Substance Notes from Mathilde Scholl 1904–1906 19 Sep 1906 Landin
73. Earth, Heart, Atom Notes from Mathilde Scholl 1904–1906 20 Sep 1906 Landin
74. Number and Revelation I Notes from Mathilde Scholl 1904–1906 21 Sep 1906 Landin
75. Number and Revelation II Notes from Mathilde Scholl 1904–1906 22 Sep 1906 Landin
82. The Three Worlds Notes from Mathilde Scholl 1904–1906 30 Sep 1906 Landin
84. The Eleventh and Twelfth Commandments Notes from Mathilde Scholl 1904–1906 4 Oct 1906 Landin
59. The Descent of Man Notes from Mathilde Scholl 1904–1906 3 Sep 1906 Landin
60. Light on the Path I Notes from Mathilde Scholl 1904–1906 4 Sep 1906 Landin
61. Light on the Path II Notes from Mathilde Scholl 1904–1906 5 Sep 1906 Landin
62. Elijah Notes from Mathilde Scholl 1904–1906 5 Sep 1906 Landin
63. The Power of God in the World and in Man Notes from Mathilde Scholl 1904–1906 10 Sep 1906 Landin
68. The Meaning of the Golden Triangle Notes from Mathilde Scholl 1904–1906 15 Sep 1906 Landin
76. The Spiral and Duality, Power and Revelation Notes from Mathilde Scholl 1904–1906 23 Sep 1906 Landin
77. The Zodiac and Man Notes from Mathilde Scholl 1904–1906 24 Sep 1906 Landin
78. Life, Revelation, Wisdom, Love Notes from Mathilde Scholl 1904–1906 24 Sep 1906 Landin
79. Prâna (The Life Force), The Fire Notes from Mathilde Scholl 1904–1906 25 Sep 1906 Landin
80. Prâna And More Notes from Mathilde Scholl 1904–1906 26 Sep 1906 Landin
81. The Spiral and Pi Notes from Mathilde Scholl 1904–1906 27 Sep 1906 Landin
83. The Human Being and Nutrition Notes from Mathilde Scholl 1904–1906 2 Oct 1906 Landin
69. The Divine Breath Notes from Mathilde Scholl 1904–1906 16 Sep 1906 Landin