The very latest.
Petersburg, July 13.
--The Washington Chronicle of the 11th is received, containing telegraphic news in reference to the invasion.
They are all press dispatches.--There is nothing official except a dispatch from Gen. Wallace to Seward, saying that Col. Seward is not captured.
The following is believed to be all of interest in the press dispatches:
Ten thousand men were armed and marching to the different fortifications in Baltimore at 6 o'clock A. M., on the 10th.
The rebels have cut the Northern Central Railway, fifteen miles from Baltimore.
The Baltimore and Ohio railroad is greatly damaged.
Most of the rolling stock has been sent to Philadelphia.
The dispatches say there are some encouraging features which it is not prudent to publish.
The Ashland Don. Works, fourteen miles from Baltimore, have been destroyed.
Dispatches, dated at 8 o'clock P. M. on the 10th, say the rebel cavalry are all over Baltimore county, but it is not feared that they will enter the city.
Sullivan's advance guard, of Sumter's command, is reported to have captured Martinsburg, numerous stores, and a number of prisoners — Telegrams from Harrisburg say the rebel force numbers forty thousand.
Gov. Cartin telegraphed the Mayor of Philadelphia that the people were not responding freely, and says the authorities at Washington to-day have authorized men to be mustered in by companies, which yesterday they refused peremptorily to do.
The Yankees say their loss at the Monocracy fight was one thousand.
The rebels levied a contribution of twenty thousand dollars on Middletown.
A dispatch from Baltimore, dated 7 o'clock, says the enemy were on the York road, seven miles from the city.
A force of fifteen hundred rebel cavalry had gone towards the Baltimore and Philadelphia Railroad, to burn the bridge over the Susquehanna river.
At last accounts the bridge was not burnt.
It was reported that the rebels had struck the Baltimore and Washington Railroad at Laurel Factory, but the Chronicle says it was not believed, because telegraphic communication was still kept up with Baltimore.
The firing heard at Harper's Ferry on the 10th was unexplained.
The Chronicle supposes Gen. Howe was getting in the rear of the Confederates.
The rebels burnt many buildings, public and private, in Hagerstown.
A special dispatch to the Chronicle, from Baltimore, says the opinion was prevalent there that the real movement is against Washington.
The rebels were at Rockville, Maryland, sixteen miles, northwest of Washington, on Sunday evening.
Dispatches from newspaper correspondents at Grant's headquarters, on the 9th, say the invasion of Maryland is believed to be insignificant, as the Richmond papers make no mention of the forces engaged in it. 