The News.

Our columns are full of the most intensely exciting news from the seat of War. The details will speak for themselves. After a successful advance as far as Bull Run and the repulse of the enemy from their positions at that point, and just as our troops were throwing pontoons over the streams, a panic, from some cause or other, seized some teamsters who were in the advance, and spread rapidly among the troops, who commenced a precipitate retreat, demoralizing the whole army, and never stopping till they reached the camps near Washington. The news is most painful. The loss on our side almost exceeds computation.