1. LaCoste and Romberg, Inc., 6606 N. Lamar, Austin, TX 78752
2. Applied Physics Laboratory, Johns Hopkins, Laurel, MD 20707
3. Office of Marine Geology, U.S. Geological Survey, Quissett Campus, Woods Hole, MA 02543
4. U.S. Geological Survey, Conservation Division, Atlantic OCS/Eastern Ridge, 1725 K St., N.W., Washington, D.C. 20006