A Somber Theme:—Ever since Eusebius sought with dedicated zeal to prove the survival of the Church by blazing a trail back to the Apostles, the program of church history has been the same: “To give a clear and comprehensive, scientifically established view of the development of the visible institution of salvation founded by Christ.” To describe it—not to question it. By its very definition church history requires unquestioning acceptance of the basic proposition that the Church did survive. One may write endlessly about The Infant Church, l'Eglise naissante, die Pflanzung der Kirche, etc., but one may not ask why the early Christians themselves described their Church not as a lusty infant but as an old and failing woman; one may trace the triumphant spread of The Unquenchable Light through storm and shadow, but one may not ask why Jesus himself insisted that the Light was to be taken away. Church history seems to be resolved never to raise the fundamental question of survival as the only way of avoiding a disastrous answer, and the normal reaction to the question—did the Church remain on earth?—has not been serious inquiry in a richly documented field, but shocked recoil from the edge of an abyss into which few can look without a shudder.