We must now return to Chalco, respecting the safety of which Cortes was particularly solicitous; for it was of the greatest importance to him that this province should be kept clear of the enemy. Our line of communication with Vera Cruz and Tlascalla ran through this country, and from which we also obtained the greater part of our provisions, as the soil was uncommonly productive of maise. Sandoval, therefore, was ordered to march thither very early next morning with 200 foot, twenty horse, twelve crossbow-men, and ten musketeers, besides all the Tlascallan troops which still remained with us,--though these had greatly decreased in numbers; for, as I have above mentioned, most of them had departed to their homes with the booty they had made. A company of Tezcucans was therefore added to this detachment, and placed under the immediate command of Luis Marin, an officer with whom Sandoval lived on the most intimate terms of friendship. We others remained behind for the protection of Tezcuco and our brigantines, nor did Alvarado or Oli leave our head-quarters on this occasion. Before accompanying Sandoval to Chalco, I must make a few comments on some observations which fell from several cavaliers, who, on comparing my account of Cortes' expedition to Xaltocan with that of Gomara, discovered that I had omitted three things mentioned in his history. One circumstance was, that Cortes had appeared before Mexico with the thirteen brigantines, and fought a terrible battle with Quauhtemoctzin's whole armed force, which had been distributed in the canoes and large pirogues. The other, that Cortes, when he had advanced up to Mexico along the causeway had held a parley with the Mexican chiefs, and threatened to reduce the town by famine: and the third, that he had not acquainted the inhabitants of Tezcuco with his intention of marching against Xaltocan, from fear they might betray his designs to the Mexicans.