Instinctively, Treason, in this vast land, aimed its first blow at the Genius of Communication,--the benign and potent means and method of American civilization and nationality. The great problem Watt and Fulton, Clinton and Morse so gloriously solved, a barbaric necessity thus reduces back to chaos; and not the least sad and significant of the bulletins whereby the most base of civic mutinies finds current record is that entitled, "Destruction of the Bridges"; and (melancholy contrast!) simultaneously we hear of constructive energy in the same direction, on the Italian peninsula,--an engineer having submitted to Victor Emmanuel proposals for throwing a bridge across the Straits of Messina, "binding Scylla to Charybdis, and thus clinching Italian unity with bonds of iron." Bonds of nationality, in more than a physical sense, indeed, are bridges: even cynical Heine found an endeared outlook to his native Rhine on the bastion of a familiar bridge; Tennyson makes one an essential feature of his English summer picture, wherein forever glows the sweet image of the "Gardener's Daughter"; and Bunyan found no better similitude for Christian's passage from Time to Eternity than the "river where there is no bridge." The primitive need, the possible genius, the science, and the sentiment of a bridge endear its aspect and associations beyond those of any other economical structure. There is, indeed, something genially picturesque about a mill, as Constable's pencil and Tennyson's muse have aptly demonstrated; there is an artistic miracle possible in a sculptured gate, as those of Ghiberti so elaborately evidence; science, poetry, and human enterprise consecrate a light-house; sacred feelings hallow a spire; and mediaeval towers stand forth in noble relief against the sunset sky: but around none of these familiar objects cluster the same thoroughly human associations which make a bridge attractive to the sight and memory. In its most remote suggestion it typifies man's primal relation to Nature, his first instinctive effort to circumvent or avail himself of her resources; indeed, he might take his hint of a bridge from Nature herself,--her fallen monarchs of the forest athwart a stream, "the testimony of the rocks," the curving shores, cavern roofs, and pendent branches, and the prismatic bow in the heavens, which a poet well calls "a bridge to tempt the angels down."