Under this law the Ottoman Sultans claim absolute and unquestioning obedience from all Moslems throughout the world; but their right to this title rests upon the same foundation as that upon which is based the title of Caliph. The Prophet himself said, and the accepted law repeats, that the Imam-ul-Mussilmin must be of the family of Koreish. The Ottoman Sultans belong not only to a different family, but to a different race. With this evident weakness in their title to the Caliphate, and the accompanying rank of universal Imam, it is a question of interest on what grounds the doctors of Mohammedan law have justified their claims, and how far these have been recognized. In addition to the rights said to have been conferred by the Caliph Mohammed XII. and by the Shereef of Mecca upon Sultan Selim I., and by him transmitted to his posterity, the Mohammedan doctors make use of a very different argument. They say-- "The rights of the house of Othman are based upon its power and success, for one of the most ancient canonical books declares that the authority of a prince who has usurped the Caliphate by force and violence, ought not the less to be considered legitimate, because, since the end of the perfect Caliphate, the sovereign power is held to reside in the person of him who is the strongest, who is the actual ruler, and whose right to command rests upon the power of his armies." This statement presents the real basis of the claims of the Sultans to the Caliphate. It is the right of the strongest. Any man who disputes it, does so at his peril; and, since 1517, the Ottoman Sultans have been able to command the submission of the Mohammedan world. Their title has not been seriously disputed. But the title has this weak point in it. It is good only so long as the Sultan is strong enough to maintain it. It has not destroyed the rights of the family of Koreish. It only holds them in abeyance, until some one of that family is strong enough to put an end to the Turkish usurpation. The power of the Sultan does not depend upon the title, but the title depends upon his power. This is a point the political importance of which should never be overlooked.