Chisels.

The small adze in Fig. 210A was probably used for some of the work usually assigned to a chisel. It has a long

Figure 211.
Small Aitutaki Adze.

bevel surface, which comes up past the level of the butt shoulder, Fig. 211. The butt shoulder is very straight and clearly cut. The cutting edge is very sharp and on a slight slant transversely. The corners thus provided two cutting points with two different angles, one acute and one obtuse. This feature is often seen in some of the smaller Maori adzes.

The only true chisel is that shown in Fig. 210B. It is made of a hard black stone, and has a sharp cutting edge. The measurements and cross sections are shown in Fig. 212.

Figure 212.
Aitutaki Chisel.

What corresponds to the anterior surface of an adze is straight transversely and very slightly convex longitudinally. Posteriorly, there is a well-marked posterior mesial longitudinal edge. To the light of this is another well-marked longitudinal edge formed by the meeting of the planes of two surfaces. On the left, but further from the middle line, there is another more rounded longitudinal edge. The bevel surface is somewhat triangular in shape, straight transversely and slightly convex longitudinally. The surface of the poll is level and well defined by the clean cut margins of the adjoining surfaces. The chisel is polished and there is no shaping or working to form a grip. The anterior surface is not so well polished.