The Water Cycle. Rock Porosity and Fluid*b1Solid Relations in Porous Media. Basic Concepts in Hydraulics. Darcy's Law. Integration of the Elementary Equations, The Diffusion Equation, Consolidation. Aquifer Systems. Steady State Solutions of the Diffusion Equation. Transient Solutions of the Diffusion Equation, Pumping Tests and Measurements of Aquifer Properties. Multiphase Flow of Immiscible Fluids. Flow of Miscible Fluids, Dispersion and Retention, Heat Transfer. Geostatistic and Stochastic Approach in Hydrogeology. Numerical Solutions of the Flow and Transport Equations. Appendixes. Bibliography. Index.