_Wedges._ Wedges made of antler were not frequently found by us as in the Thompson River region,[146] although according to Lewis, elk horn wedges or chisels were used for splitting wood in the general plateau region of which this is a part.[147] One specimen, however (202-8378b), was found on the surface near the head of Priest Rapids, which is apparently a longitudinal fragment of a wedge broken off at the top and cut by longitudinal grooving along one edge, the other edge being a portion of the surface of the wedge formed by cutting convexly across the antler. The specimen is bleached from exposure on the surface. Another wedge, shown in Fig. 39, was found on the surface near the Columbia River below the mouth of the Snake. It is made of antler which has since been bleached from exposure on the surface of the ground. [146] Smith, (d), p. 141; (c), p. 414. [147] Lewis, p. 186. [Illustration: Fig. 39 (20.0-1464). Wedge made of Antler. From the surface near the Columbia River below the Mouth of the Snake. 1/2 nat. size. (Collected and presented by Mr. Owen.)] The top was partly cut off and then broken across, while one side edge shows where the antler was grooved lengthwise for over half its length, from the inner surface and then broken out. This shows that the process of cutting up pieces of antler in this region was similar to that employed in cutting both antler and nephrite, in the Thompson River region and on the coast of British Columbia and Washington. It has since been battered. One side shows the nearly flat outer surface of part of the antler, the other has been cut off to form the wedge, which is constricted towards the point so that it assumes a somewhat spatulate form. This specimen is twisted, until the point is in a plane about 45° from the poll. It was collected by Mr. Owen who believes it to have been used as a spatula for grinding paint upon the surface of a rock. Wedges made of elk antler are common in the Nez Perce region where they are said to have almost completely supplanted celts.[148] [148] Spinden, pp. 182 and 189, Fig. 5^7. Although no wedges were found by us in the Yakima Valley proper, and we can mention only these two specimens in the whole Yakima region yet it seems probable that they were here used and for the same purposes as in the Thompson River region to the north, the Nez Perce area to the east and on the coast to the west for splitting timber, for cutting firewood and for general carpenter work. Perhaps their relative scarcity here, as compared with the Thompson and the Nez Perce country, may be explained by supposing that wooden wedges, such as are more common than antler wedges on the coast, and which may have decayed were here used more than those made of antler.