The fight became very hot against Birney's division from the left to the centre, but the troops on the right of the centre--Humphreys' division--were not at first actively engaged, and Humphreys reinforced Birney with one of his brigades, and subsequently with a regiment.
The battle which now raged among these trees, rocks, and ravines was so complicated that it is hard to follow and difficult to describe the movements of the contestants.

Some idea of it can probably be gained by an examination of the following diagram: It will be seen that a long line of rebel batteries bears upon A, and that one of them was brought up to enfilade the side AB.

The angle at A, attacked by Barksdale on the north and Kershaw on the west, was broken in.

In consequence of this, several batteries on the line EF were sacrificed, and Wofford's brigade soon came forward and took the position DE.
The Confederate line being very long, and overlapping Ward's brigade on the left, the latter was forced back, and the exulting rebels advanced to seize Little Round Top.

They attacked the force there with great fury, assailing it in front and rear, but they were ultimately repulsed, and finally took up the line GL.