Six rebels from Memphis, Mo., some of whom were identified as having served under Green, were arrested to-day near Salem, Iowa. They had with them a drove of one hundred and eighty cattle, which they said was for Chicago; the men were held as prisoners at Mount Pleasant.--N. Y. Herald, Sept. 13.
A large party started out at seven o'clock this morning from the vicinity of the Chain Bridge, above Washington, under the command of Colonel Stevens, of the New York Highlanders. It consisted of several detached companies of infantry, a company of cavalry, and Captain Griffin's battery. As the skirmishers advanced, the enemy's pickets retired beyond Lewinsville, about seven miles from the Chain Bridge. The troops, having accomplished the object of their mission connected with the reconnoissance of the country, began to retrace their steps, when a large force of rebels, consisting of two regiments of infantry and Colonel Stuart's regiment of Virginia cavalry, with a battery of four pieces, were seen approaching from the direction of Falls Church, evidently with a view of cutting them off and preventing their return to their camp; and line of battle was formed by the remainder of their forces. The rebel battery then opened with shell, which was replied to from Griffin's battery. Several rounds were fired on each side, when the National troops ceased firing for about twenty minutes, in order to give the rebels an opportunity, which they would not embrace, of meeting them on the field — the rebels being for the greater part concealed in the woods. The National forces, on resuming operations, brought into action a thirty-two pounder, the shell from which soon silenced the rebel battery. The gun was then directed toward the cavalry, which appeared on the road leading to Fall's Church, and soon sent them flying, a number reeling from their saddles and falling to the ground. The shells exploded in their midst. The command was then given to withdraw, and the Federal column fell  back in good order to Chain Bridge, reaching there late in the afternoon.--(Doc. 42.)
The Legislature of Kentucky adopted a resolution directing the Governor to issue a proclamation ordering the rebel troops encamped in that State to evacuate the soil of Kentucky. The resolution was passed by seventy-one yeas against twenty-six nays. A counter resolution, ordering both Union and rebel troops to leave the soil, was negatived under the rules of order. This action of the Legislature demonstrates the loyalty of Kentucky to the Union, without the slightest shadow of question or contradiction.
Collector Palmer, at Stonington, Conn., this day seized the bark Cavallo from New York, Captain Washington. The schooner R. Fowler of New York, Captain Eldridge, was seized on the 9th. Both vessels were taken under the confiscation act.
Colonel James W. Wall, at Burlington, N. J., was arrested this afternoon by the United States Marshal, and taken to New York by the afternoon train. The arrest produced most intense excitement among the people, as Colonel Wall had been a leading man for many years.--Trenton Gazette, September 12.
Charles Henry Foster, claiming to be a Congressman-elect from North Carolina, called upon the President, and tendered the services of a brigade of loyalists for the war.--N. Y. Herald, September 12.
Paducah, Ky., being occupied by United States troops, the Postmaster-General directed its late mail facilities to be reestablished. They were cut off because the mails were tampered with there and in that vicinity by the secessionists.--National Intelligencer, September 11.
The First Massachusetts regiment, under command of Colonel Cowdin, two companies of General Sickles' New York Brigade, and two companies of Colonel Young's Kentucky Cavalry, passed through Upper Marlboro, Md., and crossed the Patuxent into Anne Arundel County.--Baltimore American, September 13.
With the view to promoting the health and comfort of the troops in and near St. Louis, Gen. Fremont appointed a Sanitary Committee of five gentlemen who shall serve voluntarily and be rewarded at the pleasure of the General. The object of this commission shall be to carry out such sanitary regulations and reforms as the well-being of the soldiers demands. It shall have authority, under directions of the medical director, to select and fit up and furnish suitable buildings for the army and brigade hospitals in places and in such manner as circumstances require, attend to the selection of women and nurses under the authority of Miss Dix, to cooperate with the surgeons of the various hospitals in finding male nurses, to consult with the commanding and regimental officers with regard to sanitary and general condition of troops and aid them in providing proper means for the preservation of health and preventing sickness by wholesome and well-cooked food, and obtain from the community at large such additional means of increasing the comforts, promoting the moral and social welfare of the men in camp and hospital as may be needed and cannot be furnished by Government regulations. The committee is not intended to interfere with the medical staff or other officers of the army, but to cooperate with them and aid them in the discharge of their present arduous duties.--Louisville Journal, September 13.
The President issued a letter to Gen. Fremont, stating that the General's late proclamation relating to the emancipation of the slaves of rebel owners must be interpreted in conformity with the recent act of Congress bearing on the question.--(Doc. 43.)