President Lincoln to-day made the following appointments of brigadier-generals for the volunteer force: Colonels Blenker and Slocum, of the volunteers, and Major Wadsworth, aide to Gen. McDowell; Colonel John A. Peck, Ex-Major of the regular army, who distinguished himself in the Mexican war; John H. Martindale, a graduate at West Point; Ormsby M. Mitchell, Professor of Astronomy, of Cincinnati, a graduate of West Point and an ex-army officer.
Ormond F. Nims' battery of light artillery left Boston for the seat of war. The company departed from their camp at Quincy at 7 1/2 o'clock last evening, and, marching through South Boston, reached the Providence depot at 11 1/4 o'clock. An hour and a half was occupied in getting their guns, horses, and carriages on the cars. The battery consists of six rifled 6-pounders,  and besides the regular caissons it has baggage wagons, forges, magazines, etc. Six hundred Schenckl's shell and James's projectile were sent from the State Arsenal for the use of the battery.
The United States Marshal, at Boston, Mass., arrested a person who registered himself at the Parker House as “C. Jordan, Pittsburg, Pa.,” but who subsequently has confessed himself as John Williams, of Norfolk, Va., and was supposed to hold a commission in the rebel army. He was arrested as a spy, and by orders received from the Secretary of War, was sent to Fort Lafayette, New York harbor.--N. Y. Tribune, August 11.
The Third Regiment of Connecticut Volunteers, who were in the battle at Bull Run, returned to Hartford, and were received amid the firing of guns, the cheers of the firemen and military, and an immense throng of citizens, who had assembled to welcome them home.--N. Y. Tribune, August 11.
Lieut.-Col. Robert Nugent, of the Sixty-ninth Regiment N. Y. S. M., was appointed to a captaincy in the regular army of the United States. Captain Nugent was born in the North of Ireland, his brother John M. being at present the Mayor of Dundalk. He came to America immediately after the abortive insurrection of '48; and having strong military tastes, soon enrolled his name in the Fourth Company of the N. Y. National Guards, and served two years under Captain Riblet. On the organization of the Sixty-ninth in '52, Captain Nugent became one of its earliest officers, and has served faithfully in its ranks as Lieutenant, Captain, Major, and Lieutenant-Colonel down to the present day.--N. Y. Tribune, August 11.
General Lyon learned that the rebels, 22,000 in number, under Ben. McCulloch, were on Wilson's Creek, nine miles from Springfield, Mo., and moved against them with his whole force, only 5,200. The force was disposed in two columns. One under Col. Siegel with his own regiment, and that of Col. Salomon's, and six guns, moved 15 miles in a southerly direction to turn the enemy's right flank, and the other under Gen. Lyon moved forward to attack in front. Lyon's column consisted of the Missouri First, Iowa First, Kansas First and Second, part of the Missouri Second, a detachment from Col. Wyman's Illinois Regiment, all volunteers; eight hundred regulars, and two batteries of 4 and 6 guns respectively. There were also four mounted companies of Home Guards. Both columns left Springfield at about 8 P. M.--St. Louis Democrat, August 12.