The oblique incised lines on the edge of the mouthpiece and on the ridge about the middle of the pipe shown in Fig. 100, which slant outward from left to right at an angle of about 45° and make the ridge at least suggest a twisted cord, were no doubt made for decorative purposes. Pictographic scratches may be seen on the disk-shaped stone pipe, shown in Fig. 107. Those on the reverse are shown in Fig. 115. A simple geometric incised line decoration on wood may be seen on a fragment of a bow shown in Fig. 111. It will be remembered that parallel irregularly arranged cuneiform incisions decorated a fragment of a bow found in the Thompson River region.[386] The incised design on the stone dish previously mentioned on p. 38 and shown in Fig. 116 consists of two horizontal incisions running around the upper part of the dish a little below its middle and a zigzag line made up of twenty-five V-shaped marks which fills the space between the flat rim of this dish and the upper horizontal line. [386] Smith, (c), p. 411. [Illustration: Fig. 115. Incised Design on Bowl of Pipe shown in Fig. 107. 1/2 nat. size.] [Illustration: Fig. 116. Incised Design on Stone Dish. From Priest Rapids. 1/2 nat. size. (Drawn from photograph 44537, 9-3. Original in the collection of Mrs. Hinman.)] [Illustration: Fig. 117 (202-8193). Incised Designs on Dentalium Shells. From under the skeleton in grave No. 25 of a child in a stone cyst in dome of volcanic ash near Tampico. Nat. size.] [Illustration: Fig. 118 (202-8178). Incised Designs on Dentalium Shells. From among broken and charred human bones of about twelve individuals in cremation circle No. 15 (10) on terrace northwest of the junction of the Naches and Yakima Rivers.]