conformity with orders emanating from headquarters of the corps, I have the honor to report upon the part taken by my brigade — the Third of the First division of the Twelfth corps--in the recent battle of Antietam near Sharpsburgh, on the seventeenth instant.
The enemy, routed at passes of South-Mountain on the fourteenth, were rapidly pursued and brought to a stand near Sharpsburgh, on the westerly side of Antietam Creek, on the sixteenth instant.
Massed in rear of our forces, drawn up wound, placed me at this time in command of the first division of the corps.
Turning over the command of my brigade to Colonel Ruger, of the Third Wisconsin, I conducted him to the assigned position, which he held during the night of the seventeenth instant.
The First brigade (Crawford's) of my division, commanded by Colonel Knipe, of the Forty-sixth Pennsylvania, was drawn up in line of battle, also supporting General Franklin's line, to the right of my original position.
Early in the mo