concurrently with this edition. The third edition split the main title, The Arcane Teaching, into three smaller volumes, bringing the total number of books in the series to six. This edition consisted of the following titles (the three titles marked with an asterisk (*) are the volumes that had appeared together as The Arcane Teaching in the previous edition): The One and the Many* (hardback), Cosmic Law* (hardback), The Psychic Planes* (hardback), The Arcane Formulas, or Mental Alchemy (binding unknown), The Mystery of Sex, or Sex Polarity (binding unknown), and Vril, or Vital Magnetism (binding unknown). The third edition of The Arcane Teaching was published by A. C. McClurg under its own name in 1911. The books in this series bear the original 1909 copyright, plus a 1911 copyright listing "Library Shelf" as the new copyright holder. A search of the Library of Congress's web site has revealed that none of The Arcane Teaching series resides in its current collection. Other likely pseudonyms Because Atkinson ran his own publishing companies, Advanced Thought Publishing and the Yogi Publication Society, and is known to have used an unusually large number of pseudonyms, other authors published by those companies may also have been his pseudonyms; A. Gould and Dr. Franklin L. Dubois (who co-wrote The Science of Sex Regeneration circa 1912), and Frederick Vollrath (who contributed articles on the subject of "Mental Physical-Culture" to Atkinson's Advanced Thought magazine) O. Hashnu Hara. Although is hard to find concrete evidence, the first clue is always the impossibility to find information about the writer, other than the fact that he wrote books published by Atkinson. Books under this name include: Practical Yoga; Concentration; and Mental Alchemy, all books with titles similar to other Atkinson's books. Bibliographies For ease of study, this bibliography of the works of William Walker Atkinson is divided into sections based on the name Atkinson chose to place on the title page of each work cited. Bibliography of Atkinson writing as William Walker (or W. W.) Atkinson The Art of Expression and The Principles of Discourse. 1910. The Art of Logical Thinking. 1909. "Attainment with Honor", an article in "The Nautilus" magazine. June 1914. The Crucible of Modern Thought. 1910. Dynamic Thought or the Law of Vibrant Energy. 1906. How to Read Human Nature: Its Inner States and Outer Forms. c.1918 The Inner Consciousness: A Course of Lessons on the Inner Planes of