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1811 Plate I. Plan of the principal triangles … Survey Book Plate I. Plan of the principal triangles … |
1858 Plate XVIII: General diagram of the tria … Survey Book (General diagram of the triangulation, s … |
1858 Plate XIX: Principal Triangulation Survey Book Principal Triangulation. Plate XIX. (to … |
1857 Index to the Ordnance Survey of Scotland Survey Book Index to the Ordnance Survey of Scotland … |
1857 Edinburghshire : Specimen in outline. Co … Survey Book Edinburghshire : Specimen in outline. Sh … |
1857 Lewis (Ross Shire) : Specimen in outline Survey Book Lewis (Ross Shire) : Specimen in outline … |
1857 Wigtonshire : Specimen with hills engrav … Survey Book Wigtonshire : Specimen with hills engrav … |