It was not long however before the aim became more accurate, and our officers suddenly became aware of the scared looks of the German gunners, who, watching for the smoke of the rebel guns, dodged behind the trail of their own pieces until the shot had passed by, and presently a sergeant ventured to suggest that the gentlemen were drawing the fire on the battery, and to prefer the request that they would send away the horses and pursue their study of the field dismounted, which not unwillingly they did.

Not far from mid-day, in an interval of comparative quiet along the lines, most of us stretched at full length basking in the sun and waiting for “what next?” enjoyed a beautiful sight in the endeavor of the enemy to shell our division.

As we were hidden from his view no direct shot could reach us, and he seemed to have calculated that by exploding his shells high in the air, the fragments could be dropped among our ranks. What became of the fragments we did not know, hardly one of them fell near us, none of them did us injury; but we watched for the shells with interest, and were sorry when they came no more. Gazing up into the clear blue sky there would from time to time suddenly appear a little cloudlet, which unfolding itself drifted lazily away, and soon melted in the air. Each of these cloudlets was the smoke from an exploding shell, the rapid flight of which gave no other evidence of its existence to the eye, and all sound was lost in the general tumult. Each seemingly miraculous appearance of the cloudlet was hailed with admiration, and we were quite ready to enjoy the entertainment as long as our friend the enemy chose to supply it, and were inclined to be gruff with him when it stopped.

While the divisions of Generals Richardson and French were advancing on the Confederate centre, a gun from one of Porter’s horse batteries was run out quite a distance to the left, where, from a little swell of land, entirely unsupported, it opened upon the rebel infantry. The rake upon the enemy’s line was so complete that after the first few shots we could see them breaking; but the position was untenable and after the gun had been discharged perhaps a dozen times, the enemy got two guns to bear upon it, whereupon our gun was hastily limbered up and went scampering back to cover as fast as four horses could run with it, and as it went rebel shots could be seen striking up the dust all about its track, as the stones strike about an escaping dog when boys are pelting him.

When such an incident occurred we could hardly refrain from cheers. And when—as was once or twice the case—we could see some movement of the enemy against our lines which was unseen to those it menaced, it was almost irresistible to cry out a warning, and several times shells from the batteries of our division gave to the Union troops the first warning of a threatening movement.

Twenty-five days after the battle our Company C on detached service encamped for a night on the plateau, the summit of the heights which were won by Burnside’s charge, and Captain Fuller observing that the line of battle could even then be traced by the cartridge papers which lay in winrows on the ground, wondered that troops which had so gallantly charged up the steep ascent should have halted in this place long enough to have used so many cartridges.

On the 18th of September, Porter’s corps relieved Burnside’s at the lower bridge, and then we saw only too many of the woful sights which belong to battle, and saw them without that halo of excitement which in the midst of the contest diminishes their horror.

On the 19th, at dawn, we were in expectation of immediate participation in a second battle, but the enemy had retreated. In the pursuit Porter led the way. After passing through the town of Sharpsburg, the artillery occupied the roadway, the infantry moving along the fields on either side. At each rise of the land, a few pieces dashed to the summit and shelled the nearer woods, the infantry forming in the hollow in the rear, and so we felt our way a mile or two down to the Potomac. The rear guard of the enemy had just crossed the river, and General Griffin with parts of two brigades followed closely, capturing some prisoners and much property, among which were the very guns that were lost on the Peninsula from the battery he then commanded.

Returning, he reported the enemy as in full flight, and on the 20th Porter prepared to give immediate chase. A part of one of his divisions had crossed the ford and gained the bluffs on the right bank. Our own brigade was on the high lands of the other bank, when, looking across we saw the woods swarm out with rebel infantry rushing upon our little force. A sharp cannonade checked them and covered the return of nearly all our regiments, but the 108th Pennsylvania was cut off from the road to the river crossing, and forced to retire up a rising ground, terminating at the river in a high bluff, from which the only escape was to scramble down the steep cliff and thus to gain the ford.

The men poured like a cataract over the edge and down the declivity, and so long as they stayed at its immediate base they were tolerably safe, but their assailants soon gained the edge of the bluff and lying flat, could pick off any who attempted to cross to the Maryland side, and many were killed or wounded and drowned before our eyes.