Dakxhq Robbxbv.—The Petersbug Express of Thursday narrates the following: <••; Tuesday night, about eleven o'clock, the room of Mr. 3L W. Elnm, situated imnn diately over the Polite OtHce, opposite the Court -1 loose, was enlere;i by a deeperado, the door, tl :-.' ins, Ih ing lefi unlix k.-iI. lie approached the bed in wbicb Mr Elam was sleeping, but, •tumbling over a chair, waked thai gem lemau np; in- sun. however, approached ihe bed, and