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A subbottom reflection survey of southern Narragansett Bay, Rhode Island was made by means of continuous seismic reflection technique (the Continuous Seismic Profiler) developed at the Woods Hole Oceanographic Institution (Knott and Hersey, 1956). The observational program was conducted to obtain foundation data for locating hurricane barriers (Corps of Engineers, 1957) and to develop techniques for studying the geologic structure of shallow water areas. At the Woods Hole Oceanographic Institution this work is part of a continuing, broader program directed toward describing the structures and tracing the geologic history of continental margins. (Author).