The first three drilling sites were in the Gulf of Mexico, just below Sigsbee scarp, on the Challenger knoll, and in Sigsbee deep. Four and five were located between Hatteras abyssal plain and the Bahama platform; six and seven, on the west flank of the Bermuda Rise. A number of cores were drilled from each site. Gamma-ray, gamma-gamma, and resistivity logs were run. All cores are described and shown graphically and in photographs. Sediments in the Gulf range in age from Miocene to Pleistocene; those in the Atlantic, from Cretaceous to Pleistocene, with site 5 reaching the Jurassic. Foraminifera are listed from most cores, and Radiolaria from site 4. All cores show some evidence of turbidity currents.