The retreating Mexican infantry on its arrival at Guadalupe received orders from General Santa Anna to move to Tlalnepantla. One of the Mexican battalions having discharged its guns without orders and the sound being heard, Santa Anna, believing it to have proceeded from the American army, gave orders to countermarch. On learning the truth, the order was countermanded and the march resumed. General Herrera was then ordered with artillery and infantry to march to Queretaro, while Santa Anna would move on Puebla and surprise and capture the small garrison left there by General Scott. General Santa Anna, learning of the street firing in the city, supposed that the Mexicans had rallied and were contesting the possession of the capital by the Americans. He received this information from Prospero Terez, one of the leaders of the mob, who urged him to return. He at once dispatched a staff officer to General Herrera, ordering his return, and took up the line of march for the capital. Learning on his approach that the Mexicans under Alvarez in their attempt on the city were unsuccessful, he revoked his order to Herrera and ordered him to proceed to Queretaro. Very soon he again sent orders to countermarch and move to the capital. Again he ordered Herrera to move on Queretaro, when he marched to Guadalupe and issued a call for a junta to meet on the 16th. From General Scott's report we learn that the loss in his army in the various engagements around and in the City of Mexico amounted to two thousand seven hundred and three. The whole force engaged in the capture of the capital was less than six thousand. The Mexicans admit that their force for the defense of the capital was about twenty thousand, with one hundred and four cannon. The Mexican army encountered by General Scott on his move to the capital was not less than thirty thousand. In nearly if not quite all of the engagements they were intrenched, and occupied their own chosen positions. Of these, the American army killed or wounded not less than seven thousand officers and men, captured three thousand seven hundred and thirty prisoners, more than twenty colors and standards, seventy-five pieces of ordnance, besides fifty-seven wall pieces, twenty thousand stand of small arms, and a large quantity of ammunition. Following are orders issued by General Scott after the occupation of the capital: "HEADQUARTERS OF THE ARMY, NATIONAL PALACE OF MEXICO, "_September 16, 1847_. "GENERAL ORDERS NO. 286.