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John Jerom Hartley

  • The geology of north-eastern Tyrone and the adjacent portions of County LondonderryThe geology of north-eastern Tyrone and the adjacent portions of County Londonderry
  • The sub-soils of Belfast and district ... (paper) read on ... 29th January, 1940 to the Institution ofCivil Engineers, Northern Ireland Association, 1940The sub-soils of Belfast and district ... (paper) read on ... 29th January, 1940 to the Institution ofCivil Engineers, Northern Ireland Association, 1940