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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 …

1858

Plate XX: Principal Triangulation

Survey Book

Principal Triangulation. Plate XX. (to a …

1858

Plate XXII: Principal Triangulation

Survey Book

Principal Triangulation. Plate XXII. Con …

1858

Plate XXIII: Principal Triangulation

Survey Book

Principal Triangulation. Plate XXIII. (t …