e charge. We arrived at Berkley by ten
o'clock at night.

_Monday, September 15._--March through South Mountain Pass. The
battle-field gives evidence of the desperate fighting of yesterday. Our
advance guard is pressing the rear of the enemy through Boonesboro, where
we passed through at eleven o'clock A. M. The church and barns are full of
wounded and rebel prisoners. The inhabitants seem to be elated at our
entrance. After going two miles further, we halted four hours. Skirmishing
was going on near Kettysville. After dark we marched through the town.

_Tuesday, September 16._--Battle of Antietam. The battle commenced about
eight o'clock, opening with heavy cannonading. Our division changed
position during the afternoon, going from the centre to the right, passing
through Kettysville, and crossed Antietam Creek before dark. We were not
engaged to-day.

_Wednesday, September 17._--Battle of Antietam and Sharpsburg. Since four
o'clock A. M., the battle is raging furiously. Joe Hooker gained some
ground early in the morning, but was wounded soon after the beginning. Our
battery was ordered to take position close to Hooker's line. The
battle-field wore a terrific aspect, at our arrival. Before reaching the
designated position, we had to pass through the enemy's artillery fire for
nearly a mile. Two men of our battery, Fred. Phillips and Patrick Larkins,
were wounded, before getting in position. Marching through a cornfield, we
saw one of our batteries, entirely demolished, and hundreds of dead and
wounded lying around. Crossing the fields, we were heartily cheered by our
famous old Sedgwick's division, which was advancing on the enemy like
veterans. We took our position near a cemetery and in front of a burning
farm-house, a place already fought for all the morning, as could be seen
by the dead and wounded strewn around. We relieved a battery of Hooker's
command, and were supported by but two companies of the Twenty-eighth
Pennsylvania infantry, commanded by a sergeant. Here we fought, repeatedly
against artillery and infantry, for four hours and a half. At one time our
situation was very critical. The enemy, after driving Gorman's brigade, on
our right, came charging from that direction. We used double charges of
canister. There was a time when half of the battery was compelled to cease
firing. The order, "limber to the rear," was given; but, fortunately, not
heard, as it would have resulted in the certain capture of the