Physical and mathematical fundamentals of the theory of groundwater flow -- Two-dimensional flows in a vertical plane -- Confined seepage under hydraulic structures -- Zhukovsky's function and its applications: application of functional analysis -- Application of the method of inversion -- The mixed problem of the theory of functions and its applications to the seepage theory -- Application of the analytic theory of linear differential equations -- Seepage in herterogeneous and anisotropic soils: seepage of two fluids -- Natural and man-made wells: horizontal drains -- Some three-dimensional problems in the theory of seepage -- Hydraulic theory of steady flow -- Graphical, numerical, and experimental methods in the study of groundwater flow -- About inertia terms in unsteady flows. Confined flows -- Non-linear equations of unsteady flows with a free surface -- Linear equation of unsteady groundwater flow -- Two-dimensional unsteady groundwater flow -- Approximate numerical and graphical methods in the study of unsteady groundwater flow.