1790
Pl. VIII. Plans, showing the position of
Survey Book
Pl. VIII. Plans, showing the position of
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1790
Pl. IX. Plan of the triangles whereby th
Survey Book
Pl. IX. Plan of the triangles whereby th
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1790
Pl. X. For the figure of the earth, pole
Survey Book
Pl. X. For the figure of the earth, pole
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1790
Pl. XI. For the improvement of the plan
Survey Book
Pl. XI. For the improvement of the plan
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