*'-;, S'SS.A 



MEMOIRS 



OP 



THE GEOLOGICAL SURVEY OF INDIA. 



VOLUME XXV. 



Published by order of His Excellency the Governor General of India in 



Council. 



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CALCUTTA : 



SOLD AT THE OFFICE OF THE GEOLOGICAL SURVEY 



LONDON: KEGAN PAUL, TRENCH, TRUBNER, k Co. 



MDCCCXCV 



