^5,\ 



MEMOIRS 



OF THE 



GEOLOGICAL SURVEY OF INDIA. 



Vol. XXX. 



Published by order of His Excellency the Governor General of India 



in Council. 



<HoA8\ 



CALCUTTA : 



SOLD AT THE OFFICE OF THE GEOLOGICAL SURVEY. 

 LONDON: MESSRS. KEGAN PAUL, TRENCH, TRUBNER & Co. 



MDCCCCI 



