On the previous day powder enough was burned to have cured the atmosphere for twenty miles around, yet there was nothing done. We held the ground, however, in mud up to our ankles. In this we lay shivering under a cold drizzle until the morning. By daylight we were at it in earnest. During the night two of our best brigades had crept, unperceived, through the clay "barrancas" close up to the rear of the enemy's camp, ready to spring. At daybreak old Riley shouted, "_Forward and give them h-ll!_" and before our foes--not expecting us from that quarter--could bring their artillery to bear upon us, we were in the midst of them. The action lasted just seventeen minutes. At the end of that time we had laid our hands upon thirty of Valencia's cannon, and taken about a thousand prisoners; and had the satisfaction of seeing the rest of them, in their long yellow mantles, disappearing through the fissures of the lava fields, in rapid flight along the road to Mexico. We followed, of course, but as our cavalry had not been able to cross the Pedregal, and the enemy were our superiors in retreat, we were soon distanced. As we came down upon the village of San Angel, the occasional blast of a light infantry bugle, with the "crack--crack--cr-r-r-ack" of our rifles in front, told us that we had still more work to do before entering the halls of the Montezumas. We were, in fact, driving in the light troops of Santa Anna's main army, lying we knew not where, but somewhere between us and the far-famed city. It is not my intention to give an account of the battle that followed, nor should I have entered into these details of the fight at Contreras, but to put the reader in possession of "situations," and, moreover, to bring to his notice an incident that occurred, during that action, to a friend--the hero of this narrative--whom I will now introduce. I was then a Sub., and my friend, Richard L----, was the captain of my company; young as myself, and full as ardent in pursuit of the red glory of war. We had long known each other, had gone through the campaign together, and, more than once, had stood side by side under the leaden shower. I need not say how a juxtaposition of this kind strengthens the ties of friendship.