Topographic surveying; including geographic, exploratory, and military mapping, with hints on camping, emergency surgery, and photography . Fig. 41.—Volcanic Mountain, Crater, Cinder-cone, Glacip:r,Moraines, Mt. Shasta, 4 miles to l inch. Contour interval 200 ft. 121 i^m .levosit ^o7n ^ztc C,-e^.^^ Jlj^. Fig. 42,—Alluvial Ridge, Crevasse, Swamp, River, and Flood Plain Lower Mississippi River. Scale I mile to i inch. Contour interval 5 ft. 125

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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkjwiley, map