The only point where San Genis’ scheme had not been fully developed was the Monte Torrero. It will be remembered that this important hill, whose summit lies only 1,800 yards from the walls of Saragossa, overlooks the whole city, and had been chosen during the first siege as the _emplacement_ for the main breaching batteries. To keep the French from this commanding position was most important, and the Spanish engineer had intended to cover the whole circuit of the hill with a large entrenched camp, protected by continuous lines of earthworks and numerous redoubts, with the Canal of Aragon, which runs under its southern foot, as a wet ditch in its front. But, when the news of Tudela arrived, little or nothing had been done to carry out this scheme: the fortification of the city had absorbed the main attention of the Aragonese, and while that was still incomplete the Monte Torrero had been neglected. In December it was too late to begin the building of three or four miles of new earthworks, and in consequence nothing was constructed on the suburban hill save one large central redoubt, and two small works serving as _têtes-de-pont_, at the points where the Madrid and the La Muela roads cross the Canal of Aragon. St. March’s Valencian division, still 6,000 strong, was told off for the defence of the hill, but had no continuous line of works to cover it. The only strength of the position lay in the canal which runs round its foot: but this was not very broad, and was fordable at more than one point. In short, the Monte Torrero constituted an outlying defence which might be held for some time, in order to keep the besiegers far off from the body of the place, rather than an integral part of its line of defence. It was on the works of Saragossa itself that the energy of more than 60,000 enthusiastic labourers, military and civilian, had been expended during the month that followed Tudela. The total accomplished in this time moves our respect: it will be well to take the various fronts in detail.