Karst is characterized particularly by special landforms and sub surface drainage. The various actions of water result in numerous variations of surface and sub-surface karst forms. They also bring about distinctive geologic-morphologic forms, and more striking ly, specific flora and fauna. The scientific discipline of hydrology, although a long-established science, cannot easily be applied to karst regions with their very complex drainage system. A special approach is therefore necessary to understand and predict water circulation in these areas. This is the viewpoint we must adopt if...