MEMOIRS 



GEOLOGICAL SURVEY 



INDIA. 



VOL. IX, Ft. 1. 



PUBLISHED BY OEDEE OE HIS EXCELLBNCX THE GOVEENOH GENEEAL OE INDIA 



IN COUNCIL, 



TJNDES THE DIEECTIOH" OE 



THOMAS OLDHAM, LL. D., 



^llovj of the Royal and Geological Societies oj London; Member of tlie Royal Irish Academy; 



Hon. Mem. of the Leop-Carol. Academy of Natural Sciences : of the Isis, Dresden ; 



of the Roy, Geol. Soc. of Cormoall ; Corr. Mem. of Zool, Soc., lo7id., &c„ die. 



SUPEBINTEHDENT 01? THE GEOLOGICAL SUKVEY OE UTBIA. 



CALCUTTA : 



PBIKTED EOB THE GOTEENMENT OS INDIA. 



SOLD AT THE 



GEOLOGICAL SURVEY OFFICE, 



OFFICE OF SUPEEINTENDENT OF GOVERNMENT PRINTING, 



AND BY ALL BOOKSELLERS; 



LONDON: TEliliNER & CO. 



MDCCOLXXII. 



