Gordon, in his Itinerarium Septentrionale, says, that two military ways belonged to the Barrier; a small Military Way a little to the south of the Wall, and, beyond it, the Great Military Way. In addition to these, Horsley enumerates a third, which he calls the Old Military Way. Horsley conceives that the north rampart of the Vallum constitutes the road which was used by Agricola and Hadrian in transporting their troops from station to station, and that when Severus built the Wall, he formed a new road—the great military way—which pursued an independent course, sometimes coinciding with the old road, but more frequently keeping nearer to the Wall. That there may have been a path-way immediately under the Wall which went from turret to turret, on which the Roman sentries marched with slow and measured pace, when they did not choose to expose themselves upon the parapets of the Wall, is not improbable; though we now look in vain for any traces of it. But that the north agger of the Vallum was thrown up either by Agricola or Hadrian to serve the purposes of a road, is a proposition too startling to be received even on the authority of the learned Horsley. In some places, indeed, it is sufficiently flattened to admit of the passage of traffic along it, but in the greater part of the course where the works of the Vallum are not under cultivation, the rampart is too conical, too narrow, and too ragged, to admit of such a use. Excepting in those situations, where stones are mingled with the whole mass of the agger, it exhibits no signs of having been paved.[37] The manner in which all the ramparts of the Vallum on Tepper Moor are encumbered with blocks of basalt, clearly shews, that here at least there has been no road. Besides, few who trace the lines of the Vallum from sea to sea, and observe their complete parallelism, will be able to resist the conclusion, that the whole of the works were contemporaneous; whereas, Horsley’s theory ascribes part to Agricola, and part to Hadrian: moreover, it may be added, that so much do the northern and the southernmost aggers resemble each other, that unbiassed observers will scarcely entertain a doubt, that they have been thrown up to serve a precisely similar purpose. [Sidenote: THE MILITARY WAY.] Happily, there is no room for doubt respecting the other road, which Horsley calls Severus’ Greater Military Way, as in the untilled districts of the country it may be traced for several consecutive miles; and if we receive the theory, that the Murus and Vallum are one work, there is no need to seek for any other. [Sidenote: CONSTRUCTION OF THE ROAD.]