^Memoirs., As. Soc. Beng., Vol. Ill, 
PLATE XIII, 
FIG 1. THE INDIAN CH AN K-C ENTRAL TYPE OF FORM. 
FIG 3. SECTIONING CHANK SHELLS IN A DACCA WORKSHOP. 
FIG 6. RUBBING DOWN THE INNER SURFACE OF A CHANK WORKING 
SECTION, DINAJPUR, 
FIG 2. CHANK-SHELL WASTE FROM ANCIENT BANGLE FACTORY SITES AT KORKAI 
KAYAL, AND TUTICORIN (2 UPPERROWS). COMPARED WITH WASTE FROM DACCA 
<BOTTOM t ROW, WHERE ALSO A WORKING SECTION IS SHOWN). 
FIG 4. SHARPENING A CHANK SAW, DACCA. 
FIG 5. BREAKING AWAY THE REMAINS OF THE SEPTUM FROM A SAWN 
CHANK CIRCLE (WORKING SECTION). 
GRAPHED BY J. HORNELL, 
