Tin: Sabatoua.—This superb steamship will be at her berth to-morrow, at Rocket's. This ' is her first trip: aud she will run iv eounee- , tion with her consort, the Niagara, both of [ ; which have just been built, by the New York and Virginia Steamship Company, at a co.-t of : one hundred and eighty-five thousand dollars each. They combine all of the modern lm- j provements in their construction. The Sara