54 
here and in other localities by Mr: Bruce Foote were 
produced by neolithic people using finely serrated chert 
or agate flakes as suggested by him (doc. cz¢., p. 81, Vol. I). 
Had such been the case the shell sections and the 
waste fragments cut off in the course of sectioning—the 
shoulder of the shell and the lip section of the mouth 
whorl—would not exhibit the perfect regularity and 
evenness of sawn surface which they do. It is quite 
possible to cut a ring section from a chank shell by 
means of a flint ‘‘saw” but the task is one involving 
prodigious difficulty and the waste pieces must neces- 
sarily be broken and chipped off in the process in conse- 
quence of the impossibility of cutting cleanly through the 
shell owing to the smallness of the tool and the thick- 
ness of its back. Only athin blade such as the employ- 
ment of iron or steel permits will perform the task of 
sawing off the shoulder or the lip section in one conti- 
nuous operation and without breaking off the waste 
portion piecemeal as the sawing progresses as must 
necessarily be the case if a small thick-backed stone 
tool be employed. 
The hone found may conceivably have been used for 
rubbing down the thickness of the edge of the iron saw 
employed as at Dacca to-day, or in sharpening the edge 
of the chisel-edged implement used in re-forming the 
teeth of the saw itself. 
Raichur Doab. 
South-Western Hyderabad. 
The country lying between the Tungabhadra and the 
Kistna, the Raichur Doab, appears to have been thickly 
populated in prehistoric times by the same race as has 
left great numbers of implements scattered through the 
present districts of Kurnul, Cuddapah and Bellary. 
Three sites have yielded remains of bangles and of these 
one has undoubtedly been a manufacturing centre where 
the raw material has been. cut up and worked into bang- 
les for sale to the people of the district. This ancient 
factory was located near Maski, on the right bank of a 
tributary of the Tungabhadra. Exhibits 2783-63 to 
2783-85 are typical chank workshop waste exactly 
similar to what I have seen in Dacca factories. There 
