"Sponsored by the Conservation Foundation." Bibliography: p. 301-321.

INTRODUCTION: The problems -- Our Increasing requirements for water -- The need to know what we are doing -- HYDROLOGIC PRINCIPLES AND BASIC DATA: The hydrologic cycle -- Inventory of our water resources -- Delineation of arid and humid regions -- Nature's great reservoirs: ground water -- PROBLEMS RESULTING FROM GROUND-WATER DEVELOPMENT AND USE: Reservoir problems -- Pipeline problems -- Watercourse problems -- GROUND-WATER PROBLEMS RESULTING FROM LAND OCCUPANCY: Effects of agricultural use of land -- Effects of urban use of land -- Irrigation and drainage -- Disposal of wastes -- River control -- Navigation channels -- OUR INCREASING REQUIREMENTS FOR WATER: Consumptive use and waste -- Nonconsumptive use and disposal -- Anticipation of future requirements -- The ground-water quota in meeting these requirements -- CURRENT DEFICIENCIES AND FUTURE NEEDS FOR EFFECTIVE GROUND-WATER DEVELOPMENT: Hydrologic data -- Legal concepts -- Water-conservation practices -- Public enlightenment -- BETTER GROUND-WATER MANAGEMENT / Abel Wolman: Some representative ground-water problems -- Major elements in ground-water management.