A treatise on surveying, comprising the theory and the practice (1906)
Gillespie, William Mitchell, 1816-1868, Staley, Cady, 1840- · New York D. Appleton · leaf 358
with the meaning of the following arrangements ofcontours will facilitate the construction and interpretation ofa map : 1. A closed contour, with one or more higher ones inclosed, is ahill (Fig. 510). The arrows show the direction in which waterwould run. 2. A closed contour, with one or more lower… … ward the higher ground), is a croupe, the end of a ridge or prom-ontory (Fig. 512). 4. An area partially inclosed with contours, having the lower59 348 TOPOGRAPnr.
Surveying
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