Book reviewed in this articleThe Encyclopedia of Islam: A Dictionary of the Geography, Ethnography and Biography of the Mohammedan Peoples.Prepared by a number of leading Orientalists. Edited by Dr. M. Th. Houtsma, T. W. Arnold, Dr. M. Seligsohn, and A. SchaadeIslam en Christendom.Naar het Engelsch van W. H. T. Gairdner. JacquelineC. RutgersBetrayed Armenia.By DianaAgabegApcarThe Place of the Hebrew Christian in Repelling the Moslem Menace.By the Rev. J. L. GarlandChristians at Mecca.By AugustusRalli. 16moKreuz und Halbmond im Nillande.By Lie. Dr. J. Boehmer. Gutersloh.The Sayings of Muhammad.Edited by Abdullah al‐Mamun al‐Suthrawardy.Ein Mohammedanischer Catechismus.By MehmedMes'ud. Translated by Dr. P. C. Andreas.Der erlöschende Halbmond.Türkische Enthüllungen von AlexanderUlarund EnricoInsabata.Der Islam: Geschichte, Glaube, Recht.Ein Handbuch: von MartinHartmann.The Singing Caravan.Some Echoes of Arabian Poetry. By HenryBaeblein.The. Truth about Islam.By MuhammadBadrIslam in China.By MarshallBroomhall, B.A.The Expansion of Christendom.A Study in Religious History. By Mrs. AshleyCarus‐WilsonChristianity and the Nations, being the Duff Lectures for 1910 by RopertE. SpeerD. M. Thornton.A Study in Missionary Ideals and Methods. By the Rev. W. H. T.