can only mean Bagdad, the seat of the caliphs and the relation of his embassy might have been curious and instructive. But how did he procure his books? A library so numerous could neither be found at Bagdad, nor transported with his baggage, nor preserved in his memory. Yet the last, however incredible, seems to be affirmed by Photius himself, Camusat (Hist. Critique des Journaux, p. 87 - 94) gives a good account of the Myriobiblon.