THE WORK OF GROUND (UNDERGROUND) WATER.
Conditions influencing descent of rain-water, 213. Supply
of ground-water not altogether dependent on local rainfall,
215. Ground-water surface—water table, 215. Depth to which
ground-water sinks, 216. Movement of ground-water, 220.
Amount of ground-water, 221. Fate of ground-water, 221.
+The Work of Ground-water+ 222
_Chemical Work_ 222
Quantitative importance of solution, 223. Deposition of
mineral matter from solution, 225.
_Mechanical Work_ 226
+Results of the Work of Ground-water+ 226
Weathering, 226. Caverns, 227. Creep, slumps, and landslides,
231.
_Summary_ 232
+Springs and Flowing Wells+ 234
Mineral matter in solution, 235. Geysers, 236. Artesian
wells, 242.