the arc of the equator between the meridian through the point and the meridian at Greenwich, England; generally measured from 0° to 180° east or west of Greenwich
All waters which lie to the north and west of a line running from a point at latitude 48° N, longitude 18° W, thence due north to latitude 60° N, thence due east to longitude 5° W, thence due north to latitude 60°30' N, thence due east to longitude 4° W, thence due north to latitude 64° N, thence due east to the coast of Norway.
