Affairs at Vicksburg Unchanged.

Johnston's Advance Said to be a few Miles from our Outer Pickets.

Latest Intelligence from Pennsylvania.

Our Loss in the Gettysburg Fight Severe.

Lee so Crippled as to be Forced to Act on the Defensive.

Pleasanton's Cavalry thought to be Engaged.

&c., &c., &c.

HEADQUARTERS CHICKASAW BAYOU, June 29. P. M. — A gentlemen from the front represents everything in statu quo. The operations continue against the rebel works; firing is less continuous than two days ago.

Col. Smith died of his wounds yesterday morning. Col. Harsendenble, while proceeding into our end of the disputed fort, was mortally wounded by a grenade.

Johnston's advance is rumored to be a few miles from our outer pickets. Nothing more than a show of force is expected. Nothing is more desirable than a real attack, as everything is prepared.

HARRISBURG, July 3 — There is great anxiety here to know the result of the battle fought yesterday and last night between the armies under Meade and Lee. Persons at Columbia and Bainbridge, and in the neighborhood of York, heard distinctly the roar of artillery, which at times war rapid and heavy.

At daylight this morning the battle was again renewed. The battle must have been in the neighborhood of Gettysburg.

Telegraphic communication has been reopened with Baltimore by way of the Northern Central Railroad.

PHILADELPHIA, July 3. — A special to the Bulletin says: Nothing is known as to the results, but the impression prevails that the great decisive battle of the campaign has been fought in the neighborhood of Cashtown, between Gettysburg and Chambersburg. It is believed that we have suffered heavy losses in officers and men, but Lee is so crippled a to be placed on the defensive.

Yesterday Gen. Meade assumed the offensive. The day before Lee attacked Meade and was repulsed with heavy loss. Lee holds a gap on South Mountain, near Chambersburg, through which he hopes to escape if defeated.

A guard stationed at Bridge No. 84, on the Northern Central Railroad, heard firing in that direction like that of flying artillery, whence it is believed that Pleasanton is at work with his dashing cavalry, fighting for possession of the gap.

BALTIMORE, June 3. — A gentlemen from Parkton, twenty-six miles from Baltimore, says cannonading was heard there yesterday until 9 o'clock last night. The cannonading was very heavy and was resumed again at daylight this A. M., with great effect. It is positively known, however, that there was no engagement at Gettysburg up to 4 o'clock P. M.