Figure 9.—a, b, Mangaian calcite pounder, common form (Bishop Mus., B3489): height in middle line, 172 mm., curved upper surface of head, 86 mm. wide by 36 mm. thick; width at lowest part of head, 90 mm.; neck thickness 58 mm. by 50 mm.; base diameters, 100 mm. by 99 mm.; body line from neck to base, convex; outer surface of head projections, triangular with apex down, 36 mm. wide and 36 mm. in depth; basal surface slightly convex; weight, 83 oz. c, d, Mangaian calcite pounder, rarer form (Bishop Mus., C8851): height, 172 mm.; head, 69 mm. wide by 44 mm. thick; head formed of two rounded knobs with transverse edge connecting lower ends; neck diameter, 47 mm. and 44 mm.; base, 104 mm. by 101 mm.; body contour slightly concave toward base; well used; weight, 64 oz. e, f, Raivavae basalt pounder (Bishop Mus., B4678): height, 162 mm.; curved upper part of head rounded from before back; head upper width, 94 mm.; lower width 103 mm.; head thickness, 31 mm.; head projections round; diameters, 31 mm.; neck, 53 mm. by 39 mm.; base, 98 mm. by 94 mm.; body line convex; weight, 67 oz.