"Water pollution and control." . . . . "Geology and mineralogy." . . "Avonmore River (Ireland)" . . "Avoca mines (Ireland)" . . "Geography." . . "Avoca River (Ireland)" . . . . . . . "Synoptic overview of the Avoca-Avonmore catchment and the Avoca mines" . . . . . . . . . . . . . . .