Section 4
SEC. 4. Such sum as may be necessary for the construction by or under the Bureau of Public Works of the irrigation system, flood control, and the high dam and impounding reservoir is hereby authorized to be appropriated from the proceeds of the bonds issued under Republic Act Numbered One thousand, but such sum shall be repaid from the proceeds of the reparations payments under the provisions of Republic Act Numbered Seventeen hundred eighty-nine. Such sum as may be necessary for the construction of the hydro-electric powerhouse and appurtenant works by or under the National Power Corporation shall be raised by the said corporation under the authority granted it by its charter.