President Lincoln issued a proclamation preliminary to the enforcement of the “act for enrolling and calling out the National forces, and for other purposes,” defining the position and obligations of inchoate citizens under that law.--(Doc. 189.)
The Nevada Union of this date assured its readers that there were active Southern guerrillas at work in Tulare County, California! and Los Angeles was, in every thing but form, a colony of the confederate States, where an avowal of loyalty was attended with personal danger. “We are no alarmist; but in view of the condition of affairs, and the large immigration thither, composed largely of secession sympathizers, we again warn Union men that they cannot be too wide awake nor too hasty in organization. We have now before us a late copy of The Red Bluff Indspendent, in which is given an account of a frustrated attempt on the part of secessionists to capture Fort Crook in the northern part of California. The parties to whom was intrusted the carrying out of the rebel enterprise, approached a citizen of that section, offering ample inducements for him to engage in the attempt, stating to him the plans and intentions of the secessionists, which were to capture the fort with its arms and ammunition — which, by the way, could have been easily accomplished at that time by a dozen  men — and use it as a rendezvous for guerrillas. They struck the wrong man, and the consequence was, that information of their movements was conveyed to the fort, and the parties were arrested, and are now in irons at the fort, awaiting the order of General Wright.”
Secretary E. M. Stanton sent the following despatch to the Governor of Pennsylvania: “The President and the General-in-Chief have just returned from the army of the Potomac. The principal operations of General Hooker failed, but there has been no serious disaster to the organization and efficiency of the army. It is now occupying its former position on the Rappahannock, having recrossed the river without any loss in the movement. Not more than one third of General Hooker's force was enaged. General Stoneman's operations have been a brilliant success. Part of his force advanced to within two miles of Richmond, and the enemy's communications have been cut in every direction. The army of the Potomac will speedily resume offensive operations.”
The ship Crazy Jane, was captured in Tampa Bay, Fla., by the gunboat Tahoma.--Earl Van Dorn, the rebel General, was shot and instantly killed this day by Dr. Peters, of Maury County, Tenn.
To-night, a fleet of National gunboats and mortar-schooners, commenced the attack on the rebel batteries at Port Hudson, Miss.