Aberdeen Harbour Board: Specifications for the Dredging Machine Specifications for the keeping and repaiaring of the barge carrying the dredging aparatus for contractors. The letter lists all the specific parts the contractor will be required to upkeep, specifies that the contractor is also required to provide the necessary greases for the engine and dredging machinary. The contractor must also be liable and required to pay the wages of one engine keeper and fireman. The letter also lists what would not be considered as normal repairs and how these would be componsated, 1834