International Correspondence Schools · Scranton, Pa. : The Colliery engineer co. · leaf 189
Fig. 338. Fig. 339. 338, the direction in which water would flow being indicatedbv the arrows. 778 MAPPING. 2. Sloping np on all sides, i. e., a hollow, as shown inFig. 339. 3. Sloping dcnv)i on three sides, i. e., shoulder or prom-ontory; the end of a ridge or watershed line, as shown inFicr. 340. … Fig. 340. Fig. 341. 4. Sloping lip on three sides and down on one side, i. e., avalley, as shown in Fig. 341. 5. Sloping /// on two sides and dozvn on tzvo sides, alternately, called a saddle, andshown in Fig. 342. 1369. Clear and Intelligi-ble Maps.—No pains should bespared in making maps clear…
Railroad engineering
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