370 COLONEL WAUGH— ROYAL AWARDS. [May 25, 1857. 



to Lt.-Colonel Andrew Scott Waiigli for his valuable and able ex- 

 tensions of the Great Trigonometrical Survey of India, and particu- 

 larly for his recent triangulation carried on through Eajputana, 

 the Panjab, and the Himalayan Mountains, thereby adding to our 

 geography an accurate and intimate knowledge of a paf t of the globe 

 most interesting to mankind at large, and of vital importance to 

 Great Britain in particular. 



This Trigonometrical Survey of India was commenced by Colonel 

 Lambton in 1803, and continued by him till his death in January 

 1823. During that period he measured an arc of the meridian from 

 Punnse in 8° 9' 35" near Cape Comorin to Damargidda in lat. 

 18° 3' 16", being about ten degrees of latitude, and extended a net 

 of triangles over the south part of the Peninsula of India, reaching 

 on the east side of the principal meridian to the 19th parallel. 

 Colonel Everest, who had been his chief assistant since 1817, and 

 succeeded him at his death, completed the section commenced by 

 Lambton, and extended the arc to Seronj, lat. 24°, near which place 

 he measured a base of verification. This is the most important 

 base in the Trigonometrical Survey of India, as all the work to the 

 north, east, and west is dependent upon it. Colonel Everest carried 

 on the measurement of the meridional arc to its completion in the 

 Dehra Diin, lat. 30° 19'; the whole extent from Cape Comorin 

 being 22^° of latitude. He also extended a longitudinal series 

 from the Seronj base to Calcutta, in the neighbourhood of which he 

 measured a base of verification. From points selected on this series 

 originate distinct sets of meridional series, the northern limits of 

 which are united by a longitudinal series running along the foot of 

 the great mountain chain, which thus completes the triangulation 

 of that vast tract, comprising about 223,000 square miles. 



When this distinguished officer left India, Colonel, then Captain 

 Waugh, who had been his chief assistant since 1832, was appointed 

 his successor in December 1843, and following up the admirable 

 plan of survey laid down by his predecessor, the principles and 

 methods of which have been described by Everest,* he worked out 

 the several series left unfinished between the meridional arc and 

 that of Calcutta. Finally he measured a base of verification at 

 Sonakoda, lat. 25° 18', long. 88° 18', and also completed the trian- 

 gulation of the south coast series from Calcutta to Ganjam. 



Colonel Waugh then commenced operations on the west of the 

 great meridional arc, and measured a longitudinal series from the 



* Account of the Measurement of the Arc of India. 2 vols. 4to., 1847. 



