This fancy sketch, thrown off by an inveterate joker three hundred years ago, is justified curiously by any of our modern railways; but to see the picture represented in startling accuracy you should find some busy "junction" among the coal-mountains. Here you may observe, from your perch upon the hill, an assemblage of roads actively reticulating and radiating, winding through the valleys, slinking off misanthropically into a tunnel, or gayly parading away elbow-in-elbow with the streams. These avenues, upon minute inspection, are seen to be obviously moving: they are crawling and creeping with an unbroken joint-work of black wagons, the rails hidden by their moving pavement, and the road throughout advancing, foot by foot, into the distance. It is hardly too fanciful--on seeing its covering slide away, its switches swinging, its turn-tables revolving, its drawbridges opening--to declare that such a road is an animal--an animal proving its nature, according to Aristotle, by the power to move itself. Nor is it at all censurable to ask of a road like this where it "goes to." The notion of what Rabelais calls a "wayfaring way," a _chemin cheminant_, came into our thoughts at Cumberland. But Cumberland was not reached until after many miles of interesting travel along a route remarkable for beauties, both natural and improved. A coal-distributor is certain, in fact, to be a road full of attractions for the tourist; for coal, that Sleeping Beauty of our era, always chooses a pretty bed in which to perform its slumber of ages. The road which delivers the Cumberland coal, however, is truly exceptional for splendor of scenery, as well as for historical suggestiveness and engineering science. It has recently become, by means of certain lavish providences established for the blessing of travelers at every turn, a tourist route and a holiday delight. It is all very well for the traveler of the nineteenth century to protest against the artificial and unromantic guidance of the railway: he will find, after a little experience, that the homes of true romance are discovered for him by the locomotive; that solitudes and recesses which he would never find after years of plodding in sandal shoon are silently opened to him by the engineer; and that Timon now, seeking the profoundest cave in the fissures of the earth, reaches it in a Pullman car.