Tongue scraping is a method of cleaning the tongue using either a special device or a toothbrush. Some people believe that using a tongue scraper can improve oral hygiene and reduce the risk of bad ...

THIS EXPERTLY FLAKED SPECIMEN, IN CONTRAST TO THE FOUR PRECEDING, MAY HAVE BEEN TOO LIGHT TO SERVE AS A CHOPPER. OBLONG IN SHAPE. EVIDENTLY A LARGE FRAGMENT OF A PLANO-CONVEX TOOL. MAY BE BETTER ...

OBLONG IN SHAPE. RHOMBOIDAL IN CROSS SECTION. ONE FACE IS VIRTUALLY FLAT, THE OTHER IS INCURVATE WITH A STEEP OBLIQUE WORKING EDGE. AT LEAST TWO, AND PERHAPS FOUR SIDES SHOW USE (FIG. 10A) NMNH - ...