Except where by this or the special Act, or any Act incorporated therewith, it shall be otherwise provided, the Expences of and attending every such Arbitration, to be determined by the Arbiters, including the Expence of recording the Decreet Arbitral or Award in the Books of Council and Session, and of furnishing Extracts thereof from the said Books, shall be in the Discretion of the Arbiters or the Oversman, as the Case may be.