1. Holdgate, M. W., Polar Record, 11, No. 73, 394, 474 (1963).
2. Gass, I. G., Harris, P. G., and Holdgate, M. W., Geol. Mag., 100, No. 4, 321 (1963).
3. Kemp, S., and Nelson, A. L., Discovery Reports, 3, 133 (1931).
4. Secretaria de Marine, Republica Argentina. Derrotero Argentina, Parte 5, Antartida y Archipielagos Sabantarticos Argentines (Buenos Aires, 1958).