f the second, in order that each might be by itself, and to
correct some things not done well during the hasty formations here the
day before.

To the right of the First Corps, and on an extension of the same line,
along the crest and down the South-eastern slope of Culp's Hill, was
posted the Twelfth Corps--Gen. Slocum--its right, which was the extreme
right of the line of the army, resting near a small stream called "Rock
Run." No changes, that I am aware of, occurred in the formation of this
Corps, on the morning of the Second. The Second Corps, after the brief
halt that I have mentioned, moved up and took position, its right
resting upon the Taneytown road, at the left of the Eleventh Corps, and
extending the line thence, nearly a half mile, almost due South, towards
Round Top, with its Divisions in the following order, from right to
left: The Third, Gen. Alex Hays; the Second (Gibbon's), Gen. Harrow,
(temporarily); the First, Gen. Caldwell. The formation was in line by
brigade in column, the brigade being in column by regiment, with forty
paces interval between regimental lines, the Second and Third Divisions
having each one, and the First Division, two brigades--there were four
brigades in the First--similarly formed, in reserve, one hundred and
fifty paces in the rear of the line of their respective Divisions. That
is, the line of the Corps, exclusive of its reserves, was the length of
six regiments, deployed, and the intervals between them, some of which
were left wide for the posting of the batteries, and consisted of four
common deployed lines, each of two ranks of men, and a little more than
one-third over in reserve.

The five batteries, in all twenty-eight guns, were posted as follows:
Woodruff's regular, six twelve-pound Napoleon's, brass, between the two
brigades, in line of the Third Division; Arnold's "A" first R. I., six
three-inch Parrotts, rifled, and Cushing's Regular, four three-inch
Ordnance, rifled, between the Third and Second Division; Hazard's,
(commanded during the battle by Lieut. Brown,) "B" first R. I., and
Rhorty's N. G. each, six twelve-pound Napoleon's, brass, between the
Second and First Division.

I have been thus specific in the description of the posting and
formation of the Second Corps, because they were works that I assisted
to perform; and also that the other Corps were similarly posted, with
reference to the strength of the lines, and the intermixing of infantry
and artiller