Oil and gas investigations, preliminary map (series). 89. Map of Berea and Murrysville sands of southeastern Ohio, northern West Virginia, and southwestern Pennsylvania, shows thickness of sands and oil and gas pools in sands [with text]; prepared by James F. Pepper, David F. Demarest, Richard D. Holt, Wallace de Witt, jr., and Charles W. Merrels, 2nd, assisted by Margaret E. Cather, Gail M. Everhart, Mary E. Galpin and Glen E. Saam, revised by David F. Demarest and Wallace de Witt, jr. Scale 5 m.-1.07 in. n. p.