_Saturday, July 4._--Gettysburg. The battle is over. The skirmishers of the two armies are yet still confronting each other. Three men of our battery rode back to the battle-ground to inter our dead; but found them already buried by Battery C, Rhode Island. Lannegan was buried near our camp; also, Lieutenant Cushing, Battery A, Fourth Regulars--this battery is to be consolidated with Battery I, First Regulars. The great artillery assault on our centre, was the last effort of Lee's army to force our lines from Cemetery Hill. The rebels' ammunition must have been nearly expended after that. Our battery used as much as twenty-two hundred rounds of ammunition, during the battle. The town of Gettysburg is occupied by our forces. A heavy shower this evening.
_Sunday, July 5._--Battlefield of Gettysburg. Our army has taken twelve thousand prisoners. The rebels are in full retreat. Pleasanton's cavalry and the Sixth corps are in pursuit. Our battery will be consolidated with Battery B, Rhode Island. We received a new supply of ammunition and marched off on the Baltimore road, by seven o'clock P. M., going in camp near Littletown, six miles from Gettysburg, by nine P. M. It rained during the night.
_Monday, July 6._--Remained in camp near Littletown all day. General French took a pontoon train from the rebels near Williamsport. The Potomac reported to be very high.
_Tuesday, July 7._--Marched to Taneytown, seven miles, and went to camp, on account of the infantry having been without rations for several days. The Twelfth corps passed through this afternoon. The town is under contribution of rations for the troops.
_Wednesday, July 8._--Left Taneytown early. Marched twenty-four miles during a tremendous rain-storm. Passed through Woodsborough and Walkersville, and went to camp in a field of oats, live miles from Frederick City. The news of the surrender of Vicksburg were read in line on the road.
_Thursday, July 9._--Marched at seven o'clock A. M. Passed through Frederick City, which was guarded by the Seventh Regiment, New York militia, and a new battery; Jefferson City and Perkinsville, crossed the South Mountain and went to camp for the night, not far from Sharpsburg. Near Frederick we saw the body of the spy Richardson, hung on a tree by order of General Buford of the cavalry. Marched eighteen miles to-day.