[Inclosure.]

Return of casualties in the Army of the West (Union), at the battle of Wislon's Creek, Mo., August 10, 1861.

Command. Killed. Wounded. Missing. Aggregate.

Plummer's 19 52 9 80

battalion..

Steele's battalion.. 15 44 2 61

First U. S. Cavalry, ... 1 3 4

Company D..

Du Bois' battery.. ... 2 1 3

First Missouri 76 208 1 295

Infantry..

Carr's squadron.. ... ... 4 4

First Kansas 77 187 20 284

Infantry..

Second Kansas 5 59 6 70

Infantry..

Totten's battery.. 4 7 ... 11

Sigel's brigade.. 15 20 231 267

Kansas Rangers.. ... 1 ... 1

Wright's Home ... 2 ... 2

Guards..

First Iowa 12 138 4 154

Infantry..

Total.. 223 721 291 1,235

Numbers 5. Report of Captain Joseph B. Plummer, First U. S. Infantry.

HDQRS. BATTALION FIRST INFANTRY,
August 16, 1861.

SIR: I have the honor to make the following report of the operations of my command on the 10th of this month:

Immediately before setting out, Captain Gilbert's company (B) was thrown forward to feel for the enemy, whose camp was known to be in the valley of Wilson's Creek. As soon as his position was ascertained, which was shortly after sunrise, the general directed me to follow Captain Gilbert with the balance of the battalion, and, uniting with him, to carry forward the left flank of the attack. I overtook Captain Gilbert with his skirmishers in a deep jungle, where he had been checked by an impassable lagoon. Much time was consumed in effecting the passage of this obstacle. The battalion, however, finally emerged in good order, and all present, into the corn field to the left of the attack, which by this time was in full progress.

The battalion was pushed forward rapidly, and soon the enemy opened on ius from the left, but his fire was light and easily quelled. Our advance was in the direction of the enemy's battery, on the hill opposite Lieutenant Du Bois' battery, with the intention of storming it, should the opportunity offer. This was observed by the enemy, and a large force was accumulated in our front and on our left flank, and our forward progress was checked. Nevertheless, the men stood steadily and squarely up to their work, until I deemed our position no longer tenable, and I then drew off my command, steadily and without confusion, in the direction of Totten's battery, the key of our position. In this field I had many men killed and wounded. Lieutenant Wood and myself are among the latter. We were materially aided in extricating ourselves by the timely aid of Du Bois' battery, which beat back the advance of the enemy with much slaughter. On arriving at the foot of the hill, and in rear of Totten's battery, I formed the battalion and relinquished the command to Captain Huston, being no longer able