MEMOIRS 
OF 
THE GEOLOGICAL SURVEY OF INDIA. 
VOLUME XXXVI, Part i. 
The Geology of Spiti, with parts of Bashahr and 
RupsHU. By H. H. Hayden, B.A., B.E., F.G.S., Deputy 
Superintendent Geological Survey of India, 
Published by order of the Government of India. 
CALCUTTA: 
SOLD AT THE OFFICE OF THE GEOLOGICAL SURVEY, 
37, CHOWRINGHEE ROAD. 
LONDON: MESSRS. KEGAN PAUL, TRENCH, TRUBNER & CO. 
BERLIN: MESSRS. FRIEDLANDER UND SOHN. 
1904. 
