Had not famine come to the aid of the besiegers it is doubtful if they would have so soon marched through the streets of Mexico as they did. Boats and brigantines kept constant watch about the doomed capital, preventing access to water and provisions. The Mexicans were fully as well versed as their foes in the mysteries of stratagem; they were their equals in bravery, superior to them even in the reckless disregard of their lives in defence of their homes. Had their weapons of defence been equal to those of the Spaniards, the history of Mexico would to-day be a different one from what it is. They early displayed their talent for the laying of ambuscades, into which the Spanish troops often fell, greatly to their loss. They now prepared a successful ambuscade for the brigantines, those large vessels which annoyed them so much on the lake, along the causeways, and around the borders of the city. They constructed some very large canoes, called periaguas, covered with thick plank. These they filled with fighting-men and concealed among the floating gardens in a portion of the lake where the Spanish vessels were cruising to intercept canoes coming from the mainland with provisions. In front of their ambuscade they drove large stakes, deep enough beneath the surface to be out of sight, and yet forming an obstruction upon which the brigantines would founder or stick fast. They then sent out small canoes as decoys, and when the brigantines pursued them they soon ran afoul of these sunken stakes; then, when they were in this helpless condition, the periaguas sallied out and did great mischief. They killed the captains of two vessels and wounded nearly all the crew before they could be extricated and the cannon on board brought into play. Attempting this again soon after, they were themselves drawn into ambush and many of their canoes destroyed.
The intelligence that guided their operations seems to
