Author: Walker, Colonel J T:
Title: Descriptions and co-ordinates of the principal and secondary stations and other fixed points of the Rahun meridional series, or series E of the north-west quadrilateral.
Description: Dehra Dun: The Great Trigonometrical survey of India, 1875. First edition. 4to, viii, vi, 137pp. 2 large folding charts, frontispiece map. Rebound in stout blue library cloth, gilt titling to spine. This copy was formerly in Leeds Reference Library, with their bookplate to the front endpapers, a neat shelfmark to the spines and occasional stamps, but this is still a good copy overall.

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