_Oct. 24_.--Saw a large squad of our own deserters (over 300) surrounded with a cordon of arm'd guards, marching along Pennsylvania avenue. The most motley collection I ever saw, all sorts of rig, all sorts of hats and caps, many fine-looking young fellows, some of them shame-faced, some sickly, most of them dirty, shirts very dirty and long worn, &c. They tramp'd along without order, a huge huddling mass, not in ranks. I saw some of the spectators laughing, but I felt like anything else but laughing. These deserters are far more numerous than would be thought. Almost every day I see squads of them, sometimes two or three at a time, with a small guard; sometimes ten or twelve, under a larger one. (I hear that desertions from the army now in the field have often averaged 10,000 a month. One of the commonest sights in Washington is a squad of deserters.)
In one of the late movements of our troops in the valley, (near Upperville, I think,) a strong force of Moseby's mounted guerillas attack'd a train of wounded, and the guard of cavalry convoying them. The ambulances contain'd about 60 wounded, quite a number of them officers of rank. The rebels were in strength, and the capture of the train and its partial guard after a short snap was effectually accomplish'd. No sooner had our men surrender'd, the rebels instantly commenced robbing the train and murdering their prisoners, even the wounded. Here is the scene, or a sample of it, ten minutes after. Among the wounded officers in the ambulances were one, a lieutenant of regulars, and another of higher rank. These two were dragg'd out on the ground on their backs, and were now surrounded by the guerillas, a demoniac crowd, each member of which was stabbing them in different parts of their bodies. One of the officers had his feet pinn'd firmly to the ground by bayonets stuck through them and thrust into the ground. These two officers, as afterwards found on examination, had receiv'd about twenty such thrusts, some of them through the mouth, face, &c. The wounded had all been dragg'd (to give a better chance also for plunder,) out of their wagons; some had been effectually dispatch'd, and their bodies were lying there lifeless and bloody. Others, not yet dead, but horribly mutilated, were moaning or groaning. Of our men who surrender'd, most had been thus maim'd or slaughter'd.