Rebel Damages at the North.A correspondent of the Philadelphia Inquirer, writing from Frederick, Md., on the 24tb speaking of the damage done by the Confederate forces to the Chesapeake and Ohio canal, says :The aqueduct on the canal at Williamsport has been blown op, the locks destroyed, and all the boats in the vicinity burned. The lock gates atMillstown Point were also torn out, and six canal boats burned. At Green Springs the embankment was broken, and the »ater running out of the canal into the fields. He corroborated the statement of the ether refugee that the canal was a perfect wreck from Williamsport to Cumberland, Md. The rebels have burned about three hundred canal boats on the Baltimore and Ohio Canal. They paroled the boatmen and drivers not to divulge any of their movements, and then released them after taking possession of the horses em~ ployed in towiug the boats.DAMAGE TO THE 3ALTIMORE OHIO RAILROAD.All the bridges on the railroad between the Opequon and Cumberland have been destroyed, track torn up in many places, and water tanks burned and deutolihed. At the North Branch bridge, over the Potomac, they fired seventeen shots irom a 12 pounder, belore they could break ihe top cord, the bridge being an iron cne. and a very fine structure. Oaly one span 4-Qf this bridge was destroyed. The bridge over the South Branch was destioycd entirely. The bridge over Back Creek, Sleepj 8wamp, Sir John Run, and Green Spring Hun, were all burned, and the water tanks at Green 8pring Ran, and Sir John's Run were all burned The devastation has been extensive and complete.The same correspondent says :He also saw two droves of fat cattle driven South through Martinsburer, and large numbers of horses, the fruits of plunder In Western Maryland and Pennsylvania.THE RAID INTO INDIANA.A despatch Irom Cincinnati last night says that ihe Rebels who made the raid into Indiana on Sunday, are still in that 8tate, though their whereabouts are unknown. It was suDposed they had pushed north of the Ohio and Mississippi Railroad. It is reported that one thousand citizens ot Indiana are encamped at Bloom-isgton for the purpose of resisting the dratt, and that teey have pickets out for eight miles around the town.Rcckville.not Burnt.—A gentleman who reached this city Wednesday morning jnst from Rockville says the report of it« being burnt by the Yankees was premature. The