National Geographic : 1942 Jun
Hidden Key to the Pacific 763 Government House on Ponape, Japan's Largest Mandated Island This mountainous area of 130 square miles, fringed with a coral reef, is almost circular (map, page 764). It is one of four centers of control for the Carolines, a group of 577 islets stretching 2,000 miles. For Sugar Boats or Submarines? Japan Builds a Harbor 120 Miles from Guam The Japanese delegate to the League of Nations admitted in 1932 that $350,000 had been expended here at Saipan to improve docking facilities. He denied reports that a submarine base was being built.