MEMOIRS 
OF THE 
GEOLOGICAL SURVEY 
OF 
INDIA. 
VOL. VIII. 
PUBLISHED BY ORDER OF HIS EXCELLENCY THE GOVERNOR GENERAL OF INDIA 
IN COUNCIL, 
UNDER THE DIRECTION OF 
THOMAS OLDHAM, LL. D, 
Fellow of the Royal and Geological Societies of London; Member of the Royal Irish Academy ; 
Hon. Mem. of the Leop-Carol. Academy of Natural Sciences; of the Isis, Dresden ; 
of the Roy. Geol. Soc. of Cornwall; Corr. Mem. of Zool, Soc., Lond., &c., £c. 
SUPERINTENDENT OF THE GEOLOGICAL SURVEY OF INDIA, 
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. 
MDCCCLXXII. 
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