GEOLOGICAL SURVEY OF INDIA. 



Memoirs, Vol. XL IV, PL 23 



WELLEMBERG'S WATER RACE 

 NO. 9 WATER RACE 

 NO. 7 EXTENSION 

 NARAYANA REEFS 



\ 



HTANTALON WATER RACE 

 HTANTALON EXTENSION - 



PROPOSED RACE 



NO. 7 RACE 



HAPPY VALLEY CHAUNG 



TIN HILL 



THA SAW HILL 



THA BAW REEFS 



l.ilho. G. S. 1 . Calcutta. 



