y. From this, you may get a notion of the whole.

The Third Corps--Gen. Sickles--the remainder of it arriving upon the
field this morning, was posted upon the left of the Second extending the
line still in the direction of Round Top, with its left resting near
"Little Round Top." The left of the Third Corps was the extreme left of
the line of battle, until changes occurred, which will be mentioned in
the proper place. The Fifth Corps--Gen. Sykes--coming on the Baltimore
Pike about this time, was massed there, near the line of battle, and
held in reserve until some time in the afternoon, when it changed
position, as I shall describe.

I cannot give a detailed account of the cavalry, for I saw but little of
it. It was posted near the wings, and watched the roads and the
movements of the enemy upon the flanks of the army, but further than
this participated but little in the battle. Some of it was also used for
guarding the trains, which were far to the rear. The artillery reserve,
which consisted of a good many batteries, were posted between the
Baltimore Pike and the Taneytown road, on very nearly the center of a
direct line passing through the extremities of the wings. Thus it could
be readily sent to any part of the line. The Sixth Corps--Gen.
Sedgwick--did not arrive upon the field until some time in the
afternoon, but it was now not very far away, and was coming up rapidly
on the Baltimore Pike. No fears were entertained that "Uncle John," as
his men call Gen. Sedgwick, would not be in the right place at the right
time.

These dispositions were all made early, I think before eight o'clock in
the morning. Skirmishers were posted well out all around the line, and
all put in readiness for battle. The enemy did not yet demonstrate
himself. With a look at the ground now, I think you may understand the
movements of the battle. From Round Top, by the line of battle, round to
the extreme right, I suppose is about three miles. From this same
eminence to the Cemetery, extends a long ridge or hill--more resembling
a great wave than a hill, however--with its crest, which was the line of
battle, quite direct, between the points mentioned. To the West of this,
that is towards the enemy, the ground falls away by a very gradual
descent, across the Emmetsburg road, and then rises again, forming
another ridge, nearly parallel to the first, but inferior in altitude,
and something over a thousand yards away. A belt of woods extends par