Something like these children in temperament, but totally different in most other respects, are those lads that one meets so often on our railroads, drifting about for a month or so from town to town, seldom stopping in any of them over a day, and then suddenly disappearing, no one knows where, to appear again, later, on another railroad, frequently enough a thousand miles distant. Occasionally they are missed from the road for over a year, and there is absolutely no news of their whereabouts; but just as they are almost forgotten they come forward once more, make a few journeys on the freight-trains, and vanish again. There are cases on record where they have kept this up for years, some of them coming and going with such regularity that their appearances may be calculated exactly. Out West, not very long ago, there was a little chap who "showed up" in this way, to use the expression that the brakemen applied to him, every six weeks for three years, but this was all that was known concerning him. When asked who he was and where he belonged, he gave such evasive answers that it was impossible to come to any trustworthy conclusion about him. He would have nothing to do with the people he met, and I have heard that he always rode alone in the box-cars. In this last respect he was a notable exception, for, as a rule, these little nomads take great pleasure in talking with strangers, but they are careful not to say too much about themselves. They ask questions principally, and skip from one subject to another with a butterfly rapidity, but manage to pick up a great deal of knowledge of the road. The tramps' theory of them is that they are possessed of the "railroad fever" and I am inclined to agree with them, but I accept the expression in its broader sense of _Wanderlust_. They want to get out into the world, and at stated periods the desire is so strong and the road so handy that they simply cannot resist the temptation to explore it. A few weeks usually suffice to cool their ardor, and then they run home quite as summarily as they left, but they stay only until the next runaway mood seizes them. I have been successful in getting really well acquainted with several of these interesting wanderers, and in each case this has been the situation. They do not want to be tough, and many of them could not be if they tried; but they have a passion for seeing things on their own hook, and if the mood for a "trip" comes, it seems to them the most natural thing in the world to indulge it. If they had the means they would ride on Pullman cars and imagine themselves princes, but lacking the wherewithal, they take to the road.