A road is the symbol of the civilization which has produced it. The main passageway from the shore of the Yellow Sea to the capital of Korea, although it has been pressed for centuries immemorial by myriads of human feet, has never been more than a bridle path. On the other hand, wherever the great Roman Empire stepped, it engineered mighty thoroughfares which are a marvel to this day. A road is the thread on which the beads of history are strung; the beads of peace as well as those of war. Thrilling as is the progress of aerial navigation, with its infinite possibilities of human intercourse, yet surely, when the entire history of man is unrolled, the moment of the conception of building a wide and permanent road, instead of merely using a trail, will rank as equally dramatic. The first stone laid by the first Roman (they to whom the idea of road-building was original) will be recognized as significant as the quiver of the wings of the first airplane. Let us follow the old road from Boston to Plymouth: follow it, not with undue exactitude, and rather too hastily, as is the modern way, but comfortably, as is also the modern way, picking up what bits of quaint lore and half-forgotten history we most easily may. I think that as we start down this historic highway, we shall encounter--if our mood be the proper one in which to undertake such a journey--a curious procession coming down the years to meet us. We shall not call them ghosts, for they are not phantoms severed from earth, but, rather, the permanent possessors of the highway which they helped create.