Account of the Observations and Calculations: Of the Principal Triangulation; and of the Figure, Dimensions and Mean Specific Gravity of the Earth as Derived TherefromResults of a survey project carried out between 1783 and 1853 at the instigation of the Director of the Ordnance Survey General William Roy, to accurately measure the dimensions of Great Britain and Ireland, for mapping and for levying land taxes. |
Common terms and phrases
Arbury Hill Aredge Arthur's Seat Baconsthorpe Tower Balsham Tower Balta Bardon Baurtregaum Beacon Hill Ben Lawers Ben Macdui Bencorr Berule Boniface Botton Head Burleigh Moor Cheilt Cheviot Chingford Church Tower Otley Clibrig Clifton Beacon Collier Law Criffel Croghan Crowborough Crowborough Wrotham Crowle Beacon Cuileagh Danbury Church Spire Delamere Divis DUBLIN OBSERVATORY Dunkery Beacon Dunnose Dunrich Dunstable Berkhampstead Easington Easington PLATE Engraved Epping Cupola Fairlight Fashven Ben Hutig fathoms 15 fathoms Fitty Foula Gerth of Seaw Glashmeal Hill Leith Hill Holme Moss Inkpen Beacon Kippure Knockanaffrin Lawshall Lawshall Church Tower Leith Hill Little Stirling Lomond MAP OFFICE SOUTHAMPTON Mendip Pillesdon Meridian Mormonth Mount Battock Mount Sandy Mowcopt Nevis Ben Lawers Nodes Beacon Ordnance Survey PAL TRIANGULATION Point of Projection Port Cliff PRINCIPAL TRIANGULATION PLATE Rona Sawel Saxavord Sayrs Law Scarabin Severndroog Castle Slieve Donard Snowdon South Lopham Tower Spire G Swaffham Tartevil Tawnaghmore Tower Otley Tower Trostan Walton Tower Whernside Wingreen