A treatise on surveying, comprising the theory and the practice (1906)
Gillespie, William Mitchell, 1816-1868, Staley, Cady, 1840- · New York D. Appleton · leaf 383
372 TOPOGRAPHY. lower edge of the map (Fig. 538). Sometimes they have their sur-face filled by lines parallel to the shore, as for lakes (Fig. 539). Marshes are represented by a combination of tufts of grass, andhorizontal lines for water. In a fresh-water marsh the linos areshort and irregular…
Surveying
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