566 
MANGANESE DEPOSITS OF INDIA : MINING. [PaRT III : 
with a long working face and tramlines that are moved forward every 
time a slice of ore of given width has been removed from the whole 
length of the face. 
In the foregoing paragraphs I have attempted to indicate roughly 
the methods that seem to me to be most applicable to the working of the 
various types of manganese-ore deposit. There are many departures 
from the above types, and each departure introduces a modification 
in the precise method of tackling the deposit. 
