Twenty other guns and over one thousand prisoners, including eighty-eight officers and four generals, were likewise captured, and some fifteen hundred Mexicans killed and wounded. The American loss in killed, wounded, and missing was about one hundred men. Barely taking time to breathe his troops, Smith followed in pursuit toward the city. By ten o’clock in the morning he reached San Angel, which Santa Anna evacuated as he approached. The general-in-chief and the generals of division had by this time relieved Smith of his command; Scott rode to the front, and in a few brief words told the men there was more work to be done that day. A loud cheer from the ranks was the reply. The whole force then advanced to Coyacan, within a mile of Churubusco, and prepared to assault the place. CHURUBUSCO Santa Anna considered it the key to the city, and awaited the attack in perfect confidence with thirty thousand men. The defences were of a very simple description. On the west, in the direction of Coyacan, stood the large stone convent of San Pablo, in which seven heavy guns were mounted, and which, as well as the wall and breastworks in front, was filled with infantry. A breastwork connected San Pablo with the _tête de pont_ over the Churubusco River, four hundred yards distant. This was the easternmost point of defence, and formed part of the San Antonio causeway leading to the city. It was a work constructed with the greatest skill--bastions, curtain, and wet ditch, everything was complete and perfect--four guns were mounted in embrasure and barbette, and as many men as the place would hold were stationed there. The reserves occupied the causeway behind Churubusco. Independently of his defences, Santa Anna’s numbers--nearly five to one--ought to have insured the repulse of the assailants.