the heart of the city, might be regarded as a continuation of the dike of Iztapalapan. By this northern route a means of escape was still left open to the besieged, and they availed themselves of it, at present, to maintain their communications with the country and to supply themselves with provisions. Alvarado, who observed this from his station at Tacuba, advised his commander of it, and the latter instructed Sandoval to take up his position on the causeway. That officer, though suffering at the time from a severe wound received from a lance in one of the late skirmishes, hastened to obey, and thus, by shutting up its only communication with the surrounding country, completed the blockade of the capital.7
But Cortés was not content to wait patiently the effects of a dilatory blockade, which might exhaust the patience of his allies and his own resources. He determined to support it by such active assaults on the city as should further distress the besieged and hasten the hour of surrender. For this purpose he ordered a simultaneous attack, by the two commanders at the other stations, on the quarters nearest their encampments.
On the day appointed, his forces were under arms with the dawn. Mass, as usual, was performed; and the Indian confederates, as they listened with grave attention to the stately and imposing service, regarded with undisguised admiration the devotional reverence shown by the Christians, whom, in their simplicity, they looked upon as little less than divinities themselves.8 The Spanish infantry marched in the van, led on by Cortés, attended by a number of cavaliers, dismounted like himself. They had not moved far upon the causeway, when they were brought to a stand by one of the open breaches, that had formerly been traversed by a bridge. On the farther side a solid rampart of stone and lime had been erected, and behind this a strong body of Aztecs were posted, who discharged on the Spaniards, as they advanced, a thick volley