were made to connect the works by a continuous line of breastworks and redoubts, and to barricade the heads of the streets leading into the principal thoroughfares. The losses sustained by the Mexicans during the progress of the war had occasioned a great deficiency in artillery, and the interior line of defence was but poorly supplied with guns; it having been the intention, probably, of Santa Anna, if forced to retreat, to withdraw his artillery from the exterior line, and employ it in defending a new position.
The army under the immediate command of the Mexican President and General-in-chief, numbered over 30,000 men, who were well provided with arms, and well disciplined. The various fortifications south and east of the city were garrisoned, and General Valencia was thrown forward with his division, on the road to Puebla, to hold that route in observation. Santa Anna took post with the main body of his troops, in the vicinity of the capital, in readiness to succor any point that might be menaced. General Valencia advanced as far as the pass of Rio Frio, where the mountains close down upon, and overhang the road, for nearly a mile. Trees were felled, and embankments thrown up, but on the approach of General Scott, he fell back towards Mexico, and the march of the former was entirely unobstructed.
Rumors of resistance were quite frequent as the Americans advanced into the interior; but they encountered no Obstacle worthy of mention, and saw no enemy, except, it might be, an occasional guerillero flitting away over the distant cliffs, with the speed of the wild deer chased by the hunters. Major Sumner, with the companies of the 2nd dragoons, and one company of mounted rifles, led the advance; and on approaching
