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April 18

Year	Lecture Title	Book Title	City	Volume
1888	Essays from “German Weekly” Nr. 17	Collected Essays on Cultural and Contemporary History 1887–1901		31
1903	7. Letter to Marie von Sivers near Berlin	Correspondence with Marie Steiner 1901–1925	Weimar	262
1903	8. Letter to Rudolf Steiner	Correspondence with Marie Steiner 1901–1925	Weimar	262
1906	Esoteric Lesson	Esoteric Lessons 1904–1909	Berlin	266I
1909	Lecture IX	The Spiritual Hierarchies (1928)	Düsseldorf	110
1909	Lecture X	The Spiritual Hierarchies (1928)	Düsseldorf	110
1910	The Return of Christ	The Reappearance of Christ in the Etheric	Palermo	118
1912	Death and Immortality	Death and Immortality in the Light of Spiritual Science	Stockholm	69d
1914	Understanding the Spiritual World I	The Presence of the Dead on the Spiritual Path	Berlin	154
1914	Letter from Edith Maryon	Correspondence with Edith Maryon 1912–1924		263
1916	Death and Resurrection	Things in Past and Present in the Spirit of Man	Berlin	167
1918	The Super-Sensible Human Being II	The Eternal in the Human Soul	Berlin	67
1920	Lecture VI	Man: Hieroglyph of the Universe	Dornach	201
1920	Address to the Swiss Citizens	From a Unitary State to the Tripartite Social Organism	Dornach	334
1920	Eurythmy Address	The Origin and Development of Eurythmy 1918–1920	Dornach	277b
1921	Lecture VIII	Anthroposophical Spiritual Science and Medical Therapy	Dornach	313
1921	Lecture IX	Anthroposophical Spiritual Science and Medical Therapy	Dornach	313
1921	Lecture VII	Curative Eurythmy	Dornach	315
1923	Lecture IV	The Child's Changing Consciousness and Waldorf Education	Dornach	306
1923	Why Don't We Remember Our Past Lives?	The Life of Man on Earth and the Essence of Christianity	Dornach	349
1923	Eurythmy Performance	The Origin and Development of Eurythmy 1923–1925	Dornach	277d
1924	Eighth Hour	Esoteric Lessons for the First Class I	Dornach	270
1924	Eighth Lesson	Esoteric Instructions	Dornach	270