Pierre Andre, in his work _Islam et les Races_, gave the total number of Mohammedans in the world in 1917, as 246,920,000; Laurence Martin of the Library of Congress, in an article in _Foreign Affairs_ for March, 1923, gives the total number as 230,000,000 a slightly more conservative figure; but any estimate must be revised yearly, as the number is increasing with astounding rapidity. It is probable that the number of Mohammedans in the world to-day is about 250,000,000. To the above vast portions of the earth’s surface which have already been mentioned as solidly Mohammedan must now be added Asia Minor, the last hope and outpost of Christian civilization in the Near East, which was rapidly spreading and developing with the aid of our own and other Christian schools, but which has recently been cleared out by fire and massacre with the aid and connivance of the Christian powers. It has already been asserted that conversions from Mohammedanism to Christianity are extremely rare, while the former is taking heavy toll from Christian converts. It seems also that there are well-authenticated cases of Europeans and Americans having embraced Islam. Professor T. W. Arnold in his ingenious defense of Mohammedanism, _The Preaching of Islam_, cites the case of an English solicitor, Mr. William Henry Quillam, who embraced Mohammedanism and became a missionary of that faith in the city of Liverpool. By 1897, ten years after his own conversion, Mr. Quillam had made one hundred and thirty-seven proselytes. An American, Mr. Alexander Russell Webb, at one time United States Consul to Manila, after having embraced Mohammedanism, opened a mission. Mr. Webb had been brought up as a Presbyterian. In 1875, a Methodist preacher named Norman became converted to Mohammedanism and began to preach it in America.