Topographic surveying; including geographic, exploratory, and military mapping, with hints on camping, emergency surgery, and photography . Fig. 42,—Alluvial Ridge, Crevasse, Swamp, River, and Flood Plain Lower Mississippi River. Scale I mile to i inch. Contour interval 5 ft. 125. Fig. 43.—Sand-dune, Spit, Ocean. Bay. Lagoon, Slough, Tidal Flat, Swamp, and Marsh. Coos Bay, Ore. Scale 2 miles to i inch. Contour interval 100 ft. 127

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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkjwiley, map