In 1853 (he was not yet eighteen) Sam Clemens grew tired of his limitations and pined for the wider horizon of the world. He gave out to his family that he was going to St. Louis, but he kept on to New York, where a World's Fair was then going on. In New York he found employment at his trade, and during the hot months of 1853 worked in a printing- office in Cliff Street. By and by he went to Philadelphia, where he worked a brief time; made a trip to Washington, and presently set out for the West again, after an absence of more than a year.

Onion, meanwhile, had established himself at Muscatine, Iowa, but soon after removed to Keokuk, where the brothers were once more together, till following their trade. Young Sam Clemens remained in Keokuk until the winter of 1856-57, when he caught a touch of the South-American fever then prevalent; and decided to go to Brazil. He left Keokuk for Cincinnati, worked that winter in a printing-office there, and in April took the little steamer, Paul Jones, for New Orleans, where he expected to find a South-American vessel. In Life on the Mississippi we have his story of how he met Horace Bixby and decided to become a pilot instead of a South American adventurer--jauntily setting himself the stupendous task of learning the twelve hundred miles of the Mississippi River between St. Louis and New Orleans--of knowing it as exactly and as unfailingly, even in the dark, as one knows the way to his own features. It seems incredible to those who knew Mark Twain in his later years--dreamy, unpractical, and indifferent to details--that he could have acquired so vast a store of minute facts as were required by that task. Yet within eighteen months he had become not only a pilot, but one of the best and most careful pilots on the river, intrusted with some of the largest and most valuable steamers. He continued in that profession for two and a half years longer, and during that time met with no disaster that cost his owners a single dollar for damage.

Then the war broke out. South Carolina seceded in December, 1860 and other States followed. Clemens was in New Orleans in January, 1861, when Louisiana seceded, and his boat was put into the Confederate service and sent up the Red River. His occupation gone, he took steamer for the North--the last one before the blockade closed. A blank cartridge was fired at them from Jefferson Barracks when they reached St. Louis, but they did not understand the signal, and kept on. Presently a shell carried away part of the pilot-house and considerably disturbed its inmates. They realized, then, that war had really begun.

In those days Clemens's sympathies were with the South. He hurried up to Hannibal and enlisted with a company of young fellows who were recruiting with the avowed purpose of "throwing off the yoke of the invader." They were ready for the field, presently, and set out in good order, a sort of nondescript cavalry detachment, mounted on animals more picturesque than beautiful. Still, it was a resolute band, and might have done very well, only it rained a good deal, which made soldiering disagreeable and hard. Lieutenant Clemens resigned at the end of two weeks, and decided to go to Nevada with Orion, who was a Union abolitionist and had received an appointment from Lincoln as Secretary of the new Territory.

In 'Roughing It' Mark Twain gives us the story of the overland journey made by the two brothers, and a picture of experiences at the other end --true in aspect, even if here and there elaborated in detail. He was Orion's private secretary, but there was no private-secretary work to do, and no salary attached to the position. The incumbent presently went to mining, adding that to his other trades.

He became a professional miner, but not a rich one. He was at Aurora, California, in the Esmeralda district, skimping along, with not much to eat and less to wear, when he was summoned by Joe Goodman, owner and editor of the Virginia City Enterprise, to come up and take the local editorship of that paper. He had been contributing sketches to it now and then, under the pen, name of "Josh," and Goodman, a man of fine literary instincts, recognized a talent full of possibilities. This was in the late summer of 1862. Clemens walked one hundred and thirty miles over very bad roads to take the job, and arrived way-worn and travel- stained. He began on a salary of twenty-five dollars a week, picking up news items here and there, and contributing occasional sketches, burlesques, hoaxes, and the like. When the Legislature convened at Carson City he was sent down to report it, and then, for the first time, began signing his articles "Mark Twain," a river term, used in making soundings, recalled from his piloting days. The name presently became known up and down the Pacific coast. His articles were, copied and commented upon. He was recognized as one of the foremost among a little coterie of overland writers, two of whom, Mark Twain and Bret Harte, were soon to acquire a world-wide fame.

He left Carson City one day, after becoming involved in a duel, the result of an editorial squib written in Goodman's absence, and went across the Sierras to San Francisco. The duel turned out farcically enough, but the Nevada law, which regarded even a challenge or its acceptance as a felony, was an inducement to his departure. Furthermore, he had already aspired to a wider field of literary effort. He attached himself to the Morning Call, and wrote occasionally for one or two literary papers--the Golden Era and the Californian---prospering well enough during the better part of the year. Bret Harte and the rest of the little Pacific-slope group were also on the staff of these papers, and for a time, at least, the new school of American humor mustered in San Francisco.

The connection with the Call was not congenial. In due course it came to a natural end, and Mark Twain arranged to do a daily San Francisco letter for his old paper, the Enterprise. The Enterprise letters stirred up trouble. They criticized the police of San Francisco so severely that the officials found means of making the writer's life there difficult and comfortless. With Jim Gillis, brother of a printer of whom he was fond, and who had been the indirect cause of his troubles, he went up into Calaveras County, to a cabin on jackass Hill. Jim Gillis, a lovable, picturesque character (the Truthful James of Bret Harte), owned mining claims. Mark Twain decided to spend his vacation in pocket-mining, and soon added that science to his store of knowledge. It was a halcyon, happy three months that he lingered there, but did not make his fortune; he only laid the corner-stone.