In like manner the American author who has chosen to call himself Mark Twain has attained to an immense popularity because the qualities he possesses in a high degree appeal to so many and so widely varied publics,--first of all, no doubt, to the public that revels in hearty and robust fun, but also to the public which is glad to be swept along by the full current of adventure, which is sincerely touched by manly pathos, which is satisfied by vigorous and exact portrayal of character, which respects shrewdness and wisdom and sanity and which appreciates a healthy hatred of pretense and affectation and sham. Perhaps no one book of Mark Twain's--with the possible exception of 'Huckleberry Finn'--is equally a favorite with all his readers; and perhaps some of his best characteristics are absent from his earlier books or but doubtfully latent in them. Mark Twain is many-sided; and he has ripened in knowledge and in power since he first attracted attention as a wild Western funny man. As he has grown older he has reflected more; he has both broadened and deepened. The writer of "comic copy" for a mining-camp newspaper has developed into a liberal humorist, handling life seriously and making his readers think as he makes them laugh, until to-day Mark Twain has perhaps the largest audience of any author now using the English language. To trace the stages of this evolution and to count the steps whereby the sage-brush reporter has risen to the rank of a writer of world-wide celebrity, is as interesting as it is instructive. I SAMUEL LANGHORNE CLEMENS was born November 30, 1835, at Florida, Missouri. His father was a merchant who had come from Tennessee and who removed soon after his son's birth to Hannibal, a little town on the Mississippi. What Hannibal was like and what were the circumstances of Mr. Clemens's boyhood we can see for ourselves in the convincing pages of 'Tom Sawyer.' Mr. Howells has called Hannibal "a loafing, out-at-elbows, down-at-the-heels, slave-holding Mississippi town"; and the elder Clemens was himself a slave-owner, who silently abhorred slavery. When the future author was but twelve his father died, and the son had to get his education as best he could. Of actual schooling he got little and of book-learning still less; but life itself is not a bad teacher for a boy who wants to study, and young Clemens did not waste his chances. He spent three years in the printing office of the little local paper,--for, like not a few others on the list of American authors that stretches from Benjamin Franklin to William Dean Howells, he began his connection with literature by setting type. As a journeyman printer the lad wandered from town to town and rambled even as far east as New York.