The sediments of the Western Gulf of Mexico: Henry C. Stetson, and Parker D. Trask. Part I: The Continental Terrace of the Western Gulf of Mexico: Its Surface Sediments, Origin and Development. Part II: Chemical Studies of Sediments of the Western Gulf of Mexico. Papers in Physical Oceanography and Meteorology, Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, Vol. XII, No. 4, 1953. 120 S