On certain types of stones used by the Aborigines

There are in North-west Tasmania two distinct types of the Aboriginal relics, usually called Hammer or Pounding Stones, but regarded by Dr. Fritz Noetling as "sacred" or "magic" emblems. The photographs of several in Dr. Noetling's collection appeared in an early issue of the "Tasmanian Naturalist," also in the "Weekly Courier," Launceston, of September 19th, 1907.
The stones of type 1 are thick and heavy, usually convex on both surfaces. Those of type 2 are thinner and lighter, usually flat on both surfaces. If any convexity exists it is very slght. Both kinds are more or less circular in outline, but very frequently are longer in one diameter than the other, and the thickness often varies when taken at different portions of the circumference.