After looking about, Santa Anna concluded that it would not be easy to capture the American positions by assault, and appealed to the minister of war--wherever that official might be--for 1000 infantry, a 16-pounder, a 12-pounder, ammunition and supplies. He now had ten cannon, but all of them were light; owing to desertion his force included only some 4000 men; and the citizens had no arms, he reported. Probably, too, the annoyances and outrages inflicted upon them by him and his troops, and his appointing the guerilla chief military commandant of the city dampened whatever ardor they had possessed.[29.12] On September 23 and 24 unsuccessful attempts were made at Guadalupe, and the next day Santa Anna summoned Childs, describing his army as 8000 strong, and graciously announcing that "for the sake of humanity" the Americans might retire "within a limited time" with the honors of war. Childs replied as was proper, and then, riding to the posts, gave notice amid cheers that no surrender need be expected. To add the touch of humor that soldiers love, an American flag was manufactured out of an old Mexican uniform, and raised aloft; and the garrison settled down to severe duty, stern discipline, short rations and incessant watchfulness at all hours. The Mexicans tried to approach San José by throwing up successive breastworks at night in the streets leading that way, but shot, shell and rockets from Loreto kept them back. September 30 Santa Anna learned that no ammunition could be provided for the heavy cannon demanded of the minister, and resolved apparently to make a bold effort. With two 6-pounders he fired all day on the weak, plaza face of San José. But Childs, anticipating such a manoeuvre, had brought a 12-pounder from Loreto the night before; and this, protected with bags of tobacco, made an assault impracticable.[29.12] A new factor now entered the military situation. About the middle of September General "Jo" Lane, one of Taylor's chief officers at Buena Vista, arrived at Vera Cruz from the Rio Grande, and on the nineteenth his brigade set out for the interior. Aware of the situation at Puebla but not aware what was to be encountered on the route, the General had not made adequate preparations, and on meeting guerillas at the national bridge he was obliged to send back for ammunition and supplies. By October 1, however, he managed to leave Jalapa.[29.13]