[Translation of the Nahuatl (right-hand column) by James Lockhart:]
Thirty-eighth chapter, where it is said how the Spaniards installed a catapult with which they were going to kill the Tlatelolca by stealth.
And then those Spaniards installed a catapult on top of an altar platform with which to hurl stones at the people. And when they had it ready and were about to shoot it off, they gathered all around it, vigorously pointing their fingers, pointing at the people, pointing to where all the people were assembled at Amaxac, showing them to each other. The Spaniards spread out their arms, [showing] how they would shoot and hurl it at them, as if they were using a sling on them. Then they wound it up, then the arm of the catapult rose up. But the stone
[Translation of the Spanish (left-hand column) by James Lockhart:]
Chapter Thirty-eight, of the catapult that the Spaniards made to conquer the Tlatelolca.
When the Mexica Indians had all taken refuge in a district called Amaxac and they could not get at them, they ordered a catapult to be built and set it up on top of a cu that was in the tiánquiz, called a momoztli. When they launched a stone, it did not land where the people were but fell much farther back, next to the edge of the tiánquiz.
As the shot hit nothing, the Spaniards began to argue among themselves. When they saw that they could achieve nothing by means of the catapult, they decided to attack the stronghold where the Mexica were. They put themselves in proper order, arranging their squadrons, and began to move against the stronghold. When they saw them coming, the Mexica hid themselves for fear of the artillery, and the Spaniards