1SG0.] Proceedings of the Asiatic Society. 423 



portion of the Great Meridional Arc of India comprised between the 

 Damargida and Dehra Dhoon Base lines 11| degrees in length, the 

 account of the measurement of which was published by himself in 

 1847. The whole Indian Arc is equal to 21°, 21', 16", or about 1469 

 miles. No geodetic measure in any part of the world surpasses, or 

 perhaps equals, in accuracy this splendid achievement. By the light 

 it throws on researches into the figure and dimensions of the earth, 

 it forms one of the most valuable contributions to that branch of 

 science which we possess, whilst at the same time, it constitutes a 

 foundation for the geography of Northern India, the integrity of 

 which must for ever stand unquestioned. 



Col. Everest reduced the whole system of the great national Survey 

 of India to order, and established the fixed basis on which the geo- 

 graphy of India now rests. His determination of the amplitudes of 

 the two Northern sections of the great Meridional Arc by means of 

 simultaneous observations taken to the same stars with counterpart 

 circular instruments, and his method of determining the celestial 

 azimuth, still practised, may be considered the most perfect modes of 

 obtaining an astronomical element known to science. 



The following gentlemen were named for ballot at the next meeting. 



W. A. D. Anley, Escp Assistant Engineer in the "East Indian 

 Railway, proposed by Capt. Layard and seconded by the President. 



Captain C. D. Newmarch, Chief Engineer, Pegu, and Captain 

 Horace Browne, Assistant Commissioner, Pegu. 



E. 0. Riley, Escp, Magistrate of Rangoon, proposed by Lieutenant 

 ^olonel A. Phayre, and seconded by the Secretary. 



Baboo Degumber Mittra, proposed by Baboo Ramapersaud Roy, 

 and seconded by Baboo Rajendralal Mittra. 



Reverend K. M. Banerjee (foi re-election,) and 



R. T. H. Griffith, Esq., proposed by Mr. Cowell, seconded by Mr. 

 Atkinson. 



Communications were received — 



1. From Mr. W. T. Blanford, " Notes on a Collection of land shells 

 made in Upper Assam by J. "W. Master, Esq., Assistant Commission- 

 er of Golughat, with descriptions of a new species of Spiraculum, &c." 



2. From Baboo Radha Nauth Sikdar, " An abstract of Meteoro- 

 logical observations taken at the Surveyor General's Office in the 

 months of February and March last." 



