SHIPBUILDING AT DETROIT. - The following statement is taken from the Tribune:
      Campbell & Owen's Yard. - In one of their dry docks the Northern Transportation Company's propeller GRANITE STATE is lying, which is being thoroughly rebuilt, from stem to stern.
      In the other dry dock the tug SAMPSON is being rebuilt, and will, it is expected, be ready for the opening of navigation. When completed she will be a superior first-class tug, and one of the largest on the lakes.
      The barge OCEAN has undergone some very extensive repairs, including new arches, which have been placed in her. She is now as good as new.
      The schooner KNIGHT TEMPLAR, which was sunk last fall on the St. Clair Flats, with a cargo of corn, is receiving new decks, and other large repairs. All the damage she received by the above mentioned disaster are to be made good, and she will leave the yard as good as new.
      Messrs. Campbell & Owen are constructing for themselves a fine schooner of a capacity to carry 20,000 bushels of grain. She is 142 feet in length over all, 26 feet 2 inches beam, and 11 feet 8 inches depth of hold. * "They are getting in timber and other materials, with which to commence the construction of a new steamer for the Detroit and Cleveland Steamboat Company."
      Buffalo Daily Courier
      March 7, 1866
     
      . . . . .
     
Steamer R.N. RICE, of 1096 tons (new tonnage), built Detroit 1866 by Campbell & Owen. Owned by the Buffalo & Cleveland Steamboat Navigation Co. Home port, Detroit. Valued at $80,000 Class, A 1.
      Board of Marine Inspectors
      1871 Classification List.
     
      . . . . .