...ivate freight, was taken possession of by guerrillas to-night, at Bradley's Landing, fifteen miles above Memphis, Tenn. The boat, passengers, and crew were rifled of every thing. The rebel General Buford appeared before Columbus, Ky., and demanded its unconditional surrender. Colonel Lawrence, in command of the post, refused the demand, and the rebels retired.--the ocean iron-clad steamer Catawba w...