1. Crimes, T. P., and Sly, P. G., Nature, 204, 174 (1964).
2. Williams, D., Quart. J. Geol. Soc., 86, 191 (1930).
3. Kelling, G., in Turbidites, edit. by Bouma, A. H., and Brouwer, A., 84 (Elsevier, Amsterdam and New York, 1964).
4. Whitaker, J. H. McD., Nature, 207, 709 (1965).
5. Farshori, M. Z. U., thesis, Univ. London (1962).