L'inconnu, the unknown
By: by Camille Flammarion
Contributors: Harry Houdini Collection (Library of Congress)
Publisher: Harper & Brothers
Published: 1900
Place of publication: London; New York
Language: eng
Number of pages: 488
Subjects: Parapsychology; Investigation
Other titles: Unknown
Work titles: Inconnu
Notes: LC copy has the bookseller's label of Brentanos, Paris.

Translation of L'inconnu et les problèmes psychiques.