1. R. S. Dietz andM. J. Sheehy,Transpacific detection of Myôjin volcanic explosions by underwater sound, Jour. Oceanogr. Japan, 9 (1953), 53–83.
2. Marine Safety Board, Memoir of the investigations on the causes of disaster of the No. 5 Kaiyô-maru, 1953 (in Japanese), 74–77.
3. Marine Safety Board,Ibid. (2).
4. H. Tsuya, R. Morimóto, andJ. Ossaka,A brief note on the petrography of the pumice ejected from tre Muôjin reef near the Bayonnaise rocks. September 23, 1952, Jour. Tokyo Coll. Fisheries 40 (1953), No. 2 (Special No.), 16–18.
5. Marine Safety Board,Ibid. (2).