From the last-mentioned point the boundary is the meridian of Longitude 141 01’ 10’’ East extending southwards to the point of Latitude 9 08’ 08’’ South (Point B3 shown on the chart annexed to this Agreement) and that meridian shall be deemed to lie along the geodesic lines successively linking the markers MM11, MM12, MM13, and MM14 established by the Joint Survey and indicated on the chart annexed to this Agreement.