Latest from Pittsburgh

St. Louis, April 15.

Several Gentlemen connected with the army at Pittsburg arrived here yesterday. Among them is Capt. Lagow, of Grant’s staff, who is bearer of Grant’s official report of the battle at Pittsburgh. They left the army on Friday night. – Gen. Halleck arrived at Pittsburgh on Friday, and immediately assumed command of the army.

Grant in his official report estimates our loss at 1500 killed and 3500 wounded. The loss of the enemy in killed and left on the field is greater than ours; in wounded an estimate cannot be made as many must have been sent to Corinth and other places. The loss of artillery was great and many pieces being disabled by the enemy’s shot some losing all their horses and many men. Not less than 200 horses were killed. The rebel army has its outposts at the foot of Pea Ridge, extending 8 miles from Corinth. The advance of Federal troops are 8 miles from Pittsburg leaving a space only two miles between the opposing armies. A battle may be brought on at any moment. We have the strongest assurance that our army is ready for the encounter.

– Published in The Gate City, Keokuk, Iowa, Wednesday, April 16, 1862