In establishing the center corner of all sections closing on a parallel or base line, the land surveyor shall commence at the quarter-section corner on the south boundary of the section, and run a line north, parallel to the east boundary of such section; and at 40 chains from the quarter-section corner on the south boundary, such land surveyor shall permanently establish the center corner of the section; and at the point where the said north line produced intersects the parallel or base line, which must be just 40 chains west of northeast corner of the section, such land surveyor must permanently establish the quarter-section corner on the north boundary of the section.