6 <To 



MEMOIRS 



OF THE 



GEOLOGICAL SURVEY 



INDIA. 



VOL. XIII. 



PUBLISHED BY ORDER OF HIS EXCELLENCY THE GOVERNOR GENERAL OF INDIA 



IN COUNCIL. 



CALCUTTA: 



PRINTED FOR THE GOVERNMENT OF INDIA. 



SOLD AT THE 



GEOLOGICAL SURVEY OFFICE, 



OFFICE OF SUPERINTENDENT OF GOVERNMENT PRINTING, 



AND BY ALL BOOKSELLERS. 



LONDON: TRUBNER & CO. 



MDCCCLXXVII. 



ci (,^8 1 



