Land drainage: why and how?; Groundwater investigations; Soil conditions; Estimating peak runoff rates; Evapotranspiration; Frequency and regression analysis; Basics of groundwater flow; Subsurface flow to drains; Seepage and groundwater flow; Single well and aquifer tests; Water in the unsaturated zone; Determining the saturated hydraulic conductivity; Land subsidence; Influences of irrigation on drainage; Salinity control; Analysis of water balances; Agricultural drainage criteria; Procedures in drainage surveys; Drainage canals and related structures; Surface drainage systems; Subsurface drainage systems; Tubewell drainage systems; Pumps and pumping stations; Gravity outlet structures; Environmental aspects of drainage; Land drainage: bibliography and ....