In the course of an examination of Lower and Middle Pleistocene Beds at Kanam and Kanjera, on the southern shore of the Kavirondo Gulf of Victoria Nyanza, exposures of strongly disturbed lacustrine beds were located. The remarkable character of the deformation, at a locality where the possibility of a compressional origin could be excluded, led Professor P. G. H. Boswell (with whom the occurrence was discovered) to suggest that a short account should be published.