CONTENTS xv 



Problems of water rights 243 



Water rights inherent in land ownership, 245; Water rights 

 based on priority of use, 246; Individual rights versus public 

 rights in each phase of the hydrologic cycle, 250; Water rights 

 based on preferential use, 252; Rights and responsibilities in 

 physical and chemical properties of water, 254; Rights and 

 responsibilities in cost of obtaining water, 255. 

 Interrelationships of subdivisions of major drainage 



basins 258 



Problems of regulating ground water 260 



"Safe yield," 261; Reservoirs with negligible replenishment, 

 264; Effect of regulation upon present development, 264. 

 Water-conservation Practices 267 



Public Enlightenment 269 



Significance of "water-table" fluctuations 271 



Possibilities of multiple use of water 272 



Possibilities of manipulation of storage in ground- 

 water reservoirs 273 

 Recognition of water resources as a vital factor in 

 economics 275 

 VII. Better Ground- water Management 277 

 by Abel Wolman 

 Some Representative Ground-water Problems 282 

 Major Elements in Ground-water Management 288 

 Appendix 1. Pumpage from Major Ground-water Reser- 

 voirs in Order of Magnitude 291 

 Appendix 2. Index of Localities 294 

 Appendix 3. Selected Bibliography of Areal Ground- 

 water Studies 301 

 Subject Index 323 



