2 Symbols of automatic register in the Eastman mapping camera (v) 3 3 The United States Military Academy, West Point, N. Y. (o) 8 4 The United States Naval Academy, Annapolis, Md. (o) 9 ARCHITECTURE, LANDSCAPE GARDENING, AND ENGINEERING 5 Monument Avenue, Richmond, Va. (o) 12 6 The United States Naval Observatory, Washington, D. C. (o). 13 7 Shipyards at Newport News, Va. (o) 14 8 The New York Connecting Railroad Bridge (o) 15 9 A part of Washington, D. C. (o) 16 10 Part of Rockaway Beach, Long Island, N. Y. (v) 17 11 Part of Long Branch, N. J. (v) 18 12 Benning, D. C., and the Anacostia River (v) 22 13 The land along the Anacostia River on the eastern edge of Washington, D. C. (v) facing 22 14 Map of the same area as in Fig. 13 facing 22 GENERAL ASPECTS OF THE SURFACE 15 Southeastern part of Mulberry Island on the lower James River, Maryland (v) 24 16 Map of the same area as in Fig. 15 25 17 Columbus, Ga. (v) facing 26 18 Map of the same area as in Fig. 17 facing 26 MARSHES AND COASTAL MUD FLATS 19 Tidal marsh and ocean beach at Corsons Inlet, New Jersey (v) 28 20 Details of marshland, Lee Marsh, lower Pamunkey River, Virginia (v) 30 21 Details of marshland, Cousaic Marsh, lower Pamunkey River, Virginia (v) 31 22 Barrier beach from Corsons Inlet to Atlantic City, N. J. (v) 32 23 A river system in miniature near Hampton, Virginia (v) 33 24 Sweet Hall Marsh on the lower Pamunkey River, Virginia (v) 34 25 Map of the same area as in Fig. 24, with cross section 35 26 Eltham Marsh on the lower Pamunkey River, Virginia (v) 36 27 Map of the same area as in Fig. 26, with cross section 37 28 A stream system of the mud-flat area off the Eastern Shore of Virginia (v) 42 29 Mud-flat streams (v) 43 SUBMERGED LAND FORMS 30 Stove Point Neck at the mouth of the Piankatank River, Virginia (v) 46 31 Gwynn Island at the mouth of the Piankatank River, Virginia (v) 46 32 Map showing the location of Figs. 31 and 32, with cross section 47 33 A drowned valley: Lambs Creek, Chesapeake Bay, Virginia (v) 48 THE PLAIN FROM THE AIR