The specimens described in this paper are in the collection of the Australian Museum. 1. E.50489. Found on a claypan twelve miles from Bancannia Lake, and eighty-five miles north of Broken Hill, New South Wales (Plate xv, figs. 5a-b).—A straight conical stone, flattened oval in section. It is completely polished, except for a band 1 cm. wide round the base and the concave butt which form a hammer-dressed area. No flakes have been struck off the base round the butt. The distal end is a sharp-edged blade 2.75 cm. long formed by two ground facets 0.5 cm. wide; a large spall 6 cm. long is missing from one side of this end. The material is a gneissic rock. It bears simple but unusual incised markings.