Affairs on the lower Potomac.
The Resolute came up to the Navy-Yard this evening, and returned with the mails for the upper division of the Potomac flotilla — She reports that the gun-boat Dawn passed down the river night before last, without receiving any attention from the rebel batteries.
Thirty-two shots were this morning fired at four oyster porgies passing up the river, without doing any damage whatever.
A new battery has been erected opposite Maryland Point, at Aquia Creek, which has compelled the lower division of the flotilla to leave its anchorage and move further down.
Death of Col. Wm. A. Jackson.
Colonel William A. Jackson, of the New York Eighteenth Volunteers, died this evening, at 6 o'clock. His disease was typhoid fever, accompanied by severe hemorrhage.--He resigned his position as Inspector General of the State of New York, and accepted the Colonelcy of the Eighteenth.
He was in his thirtieth year, and a son of Professor Jackson of Uni