When he had first secured this position, Logan ordered one of his batteries, commanded by Captain De Gress, to take position on the knob I have mentioned, and open upon the bridge and fort. The order was obeyed with alacrity. Courage is a sort of magnet which attracts its like; it surrounded Logan with men of his own stamp, among whom were Major Charles J. Stolbrand and Captain Francis De Gress, and it was not long before these two had the battery posted and ready to open at Logan's command. I was at the time on this knob, and anticipated seeing some handsome artillery practice and a great scattering among the rebels, very plainly visible below, crossing the river and moving about in the fort, not much over a mile distant. But it was destined that the scattering should be among our own forces supporting De Gress's battery and lying along the ridge, and particularly was there to be "much scattering" on my part. I had noticed, as had others, the peculiar appearance of the hill on which the battery was posted and on which I stood, but had not suspected why the change had been wrought. The trees, with the exception of a single tall, straight oak left standing in the centre and on the very summit of the knob, had been carefully felled, and the tops thrown down the sides and slope of the hill, forming a sort of abatis, and making the approach to the summit rather difficult. Several persons had made inquiries and suggestions as to the purpose of the rebels in clearing the hill and forming the abatis around it, but it was not until De Gress had opened fire on Resaca that the mystery was solved. Then it suddenly flashed on the minds of all simultaneously with the flash of the first rebel gun in the fort in Resaca. The first round of De Gress came very near being his last, for the ten guns in the rebel fort beyond the river opened simultaneously on him, and every shot fell among the guns and troops supporting them. It was then discovered that the hill on which De Gress had posted his guns had been cleared by the rebels and one tree left standing as a target for artillery practice. For at least a year the gunners in the fort in Resaca had been practicing by firing at this tree, and they had the range of the hill to such accuracy that every shot fell in our midst. The first broadside sent me to cover, and I hastily dropped behind a huge oak stump left standing, and which afforded ample protection. Here I could see the rebels at their guns, watch De Gress and Stolbrand at theirs, and, by turning half around, see the troops which lay near me supporting the battery. The first shells thrown by the rebels had wounded several of these, and their cries of pain, as they were carried to the rear, could be plainly heard, and did not in any great measure add to my comfort, or increase my confidence in the invulnerability of my position, and I began to conclude it was not bomb proof. Meantime the rebels were firing