Aryan Sun-Myths, the Origin of Religions, by Sarah E. Titcomb, is a very conscientious effort to reduce to a convenient compass, a vast amount of lore, whose sources are scattered through all literature and all languages. This work will afford sufficient information on the subject for all practical purposes while its excellent catalogue of the more important works concerning it, and some very comprehensive explanatory notes appended, may easily lead up to more profound studies.