"Continued reverses, in the face of long-continued action and desire for the attaining a given end, forges in the finer calibre of mind a spirit of unremitting purpose. Blow after blow, which would turn away the ordinary individual from his endeavour, serves to steel the real hero to a dispassionate and persistent patience, and the purpose from its very intensity becomes almost a sacred cause, and seems to obtain from the unseen powers of circumstance success at last. So with Cortes and others of the Spaniards. The period prescribed by the somewhat rash prophecy of the Aztec priests and their infernal oracle having passed without anything remarkable having taken place, the Tlascalan and Texcocan allies, upbraided and warned by the Spaniards' messengers, now sneaked back to resume the attack against the city. The Aztecs had sought to cause disaffection in outlying places by sending round the bloody heads of decapitated Spaniards and horses, but with little effect. Cortes then prepared for a final effort. The plan adopted was to be slower but surer than the former one of simple slaughter. It was determined to raze the city to the ground; to destroy the buildings step by step, fill up the canals, and so lay waste the whole area from the outside, so that unobstructed advance might be maintained. "The execution of this plan was begun. The city ends of the causeways were captured and held; street after street was demolished, and canal after canal filled up amid scenes of incessant fighting and slaughter. Day after day the Spaniards returned to their work; day after day with admirable tenacity the inhabitants of Tenochtitlan disputed the ground inch by inch, watered with the blood of themselves, their women and their children. Their supplies cut off, famine and pestilence wrought more terrible havoc among them--crowded as they gradually became into one quarter of the city--than the arms of the Spaniards and the Tlascalans. At the termination of each day's work the Spanish prepared an ambuscade for the enemy, drawing them on by seeming to retire, and massacring them with the artillery and gun-fire and lances, to say nothing of the weapons of their savage allies. On one of these occasions 'the enemy rushed out yelling as if they had gained the greatest victory in the world,' Cortes wrote in his dispatches, and 'more than five hundred, all of the bravest and principal men, were killed in this ambush.' He added, and it was a common occurrence, 'our allies'--the Indians--'supped well that night, cutting up and eating their captives!' During the days of this terrible siege the famous catapult was made, an extraordinary engine to discharge great stones upon the enemy. This was to enable the Spaniards to husband their powder, which was getting low, and the Aztecs watched the construction of this machine with certain fear. It was completed and set to work, but the builder, a Spanish soldier of inventive