Account of the operations of the Great Trigonometrical Survey of India. Volume 1. The standards of measure and the base-lines, also an introductory account of the early operations of the survey during the period 1800-1830.
Walker, J.T.
Account of the operations of the Great Trigonometrical Survey of India. Volume 1. The standards of measure and the base-lines, also an introductory account of the early operations of the survey during the period 1800-1830. - Dehra Doon Office of the Great Trigonometrical Surv 1870 - (527)p. : ill.,maps ; 32cm.
Presented by the Secretary of State for India.
SURVEY OF INDIA
Account of the operations of the Great Trigonometrical Survey of India. Volume 1. The standards of measure and the base-lines, also an introductory account of the early operations of the survey during the period 1800-1830. - Dehra Doon Office of the Great Trigonometrical Surv 1870 - (527)p. : ill.,maps ; 32cm.
Presented by the Secretary of State for India.
SURVEY OF INDIA