Figure 95.—Quadrangular adz, type 2; Rarotonga (C8961). a, front surface: shows shoulder with slight downward curve at sides; blade convex transversely and longitudinally; increase in width downward; front side edges well marked on blade, rounded off on butt. b, back with well-marked side edges on blade and butt; bevel surface concave transversely with gradual slope onto back, without distinct chin; cutting edge distinctly curved with convexity forward; back surface slightly wider than front. c, right side: shows the backward slant of butt making back concave longitudinally from poll to bevel surface. d, sections. Weight, 4.75 oz.