﻿312 ON EXTENDING A GEOGRAPHICAL SURVEY 



X. 



An Account of a Method for extending a 

 Geographical Survey «cro55' t/ie Penin- 

 sula of India. 



By Brigade Major Lambton. 



Cotttmunkated hy perm'tssion of the Right Honourable the Govemor ef 

 Fort St. George, in CourtciL 



Having long reflected on the great advantage to 

 general geography that would be derived from ex- 

 tendhig a survey across the peninsula of India, for 

 the purpose of determining the positions of the prin- 

 cipal geographical points; and seeing that, by the 

 success of the British arms during the late glorious 

 campaign, a district of country is acquired, which 

 not only opens a free communication with the Ma- 

 labaj' coast, but from its nature affords a most ad- 

 mirable means of connecting that with the coast of 

 Coromandel by an uninterrupted scries of triangles, 

 and of continuin"" that series to an almost unlimited 

 extent in every other direction; I was induced to 

 communicate iny ideas to the right honourable the 

 Governor in Council at Madras^ who has since been 

 pleased to appoint me to conduct that service, and 

 has supported me with a liberality by which alone it 

 could be carried into execution. 



It is scarcely necessary to say, what the advan- 

 tage will be of ascertaining the great geographical 

 features of a country upon correct mathematical 

 principles: for then after surveys of different dis- 

 tricts have been made, in the usual mode, they can 

 be combined into one general map. One surveyor 

 is employed in a district at Sera; and another in 



the 



