THE N^w YORK 
ACADEMv OP SC,rJ!;cES. 
MEMOIRS 
OP 
THE GEOLOGICAL SURVEY OF INDIA 
VOLUME XXXVI 
Published by Order of the Government of India 
CALCUTTA : 
SOLD AT THE OFFICE OF THE GEOLOGICAL SUl'VEY OF TXDlJ^, 
27, CHOWRINGHEE ROAD 
LONDON: MESSRS. KEGAN PAUL, TllENCH, TRUBNER & Co 
BERLIN: MESSRS. FRIEDLANDER UND SOHN. 
[(^tjl{- 1912. 
