Account of the Observations and Calculations, of the Principal Triangulation

angle applied attraction Azimuth Barrow bars base Beacon Hill Bearings calculation centre Church circle Computed condition Corp correction Cross Cross Fell deflection determined difference direction distance Dunnose earth East Elongation equal equations extremity feet Fell FIGURE give given ground Head Hill hole inches July latitude length Lomond marked mean measured meridian microscopes miles mountain Names observed obtained pile placed plane Polaris PRINCIPAL probable error quantity R.S.M. Objects Range Reading Recip reduce Referring-object side Slieve South Spire Star station stone surface Telescope above surface Theodolite Tower triangulation trigonometrical station values VIII Weight XVII XXII XXIV XXIX XXVI XXVIII XXXI XXXII XXXIV XXXIX Zenith