- The Language of the Stars: Zodiac and Planets in Relation to the Human Being: The Cosmic Rhythm in the Creed
- The Mystery of Musical Creativity: The Human Being and Music
- The Source of Speech: Word, Language, and the Origin of Speech: From Indology to Anthroposophy
- Verzeichnis Der Tibetischen Handschriften Der Koniglichen Bibliothek Zu Berlin; Band 1
- Verzeichnis Der Tibetischen Handschriften Der Koniglichen Bibliothek Zu Berlin















