There is relatively less evidence of contact with the prehistoric people of Puget Sound and the Pacific coast of Washington, and of southern British Columbia. Several kinds of sea shells, including dentalium, haliotis and pectunculus, which must have come from the coast, were found in the Yakima Valley. Small points chipped from beautiful material found in this region were occasionally seen on the coast, more particularly south of Puget Sound. Glassy basalt was used here perhaps about as much as on the coast. Net sinkers are also about as common here as on the coast from Gray's Harbor southward. The pestles found in the vicinity of Vancouver Island are similar to some of the short pestles found in the Yakima region. Short tubular pipes are found on the coast in the vicinity of the Saanich Peninsula and the Lower Frazer. The pipe previously described as clearly representative of the art of the Northwest coast must have been brought from there or made by a coast artist, not by one merely familiar with the art of the coast. A portion of the material indicative of coast culture that was found in the Yakima Valley may have come up the Cowlitz and down the Toppenish River. The similarities mentioned are, however, outweighed by marked differences. Large shell heaps--the chief feature of Coastal archaeology--have not been found in the Yakima area, while quarries are unknown to us on the coast. Objects made of nephrite and whale's bone are lacking in the Yakima Valley. A very great number of points rubbed out of slate and bone are found on the coast, but none rubbed out of slate and only a few rubbed out of bone have been found on Yakima sites. Net sinkers are much more common than on the coast, where they are plentiful only from Gray's Harbor southward and in the Lower Columbia Valley. Long pestles with the tops carved to represent animal heads are distinctive of the Yakima area, while cylindrical pebbles used as pestles but slightly changed from the natural form, which are quite common in the Yakima Valley, are rarely found in the Coast country. One style of club made of stone commonly found in this vicinity has not been seen anywhere on the coast, although some clubs made of stone are like specimens from that region. Perforated slate tablets like Coastal gorgets are unknown to us from the Yakima area. Cairns common on the coast are not found in the Yakima country, while the reverse holds true of rock-slide burials. Graves in knolls are unknown on the Pacific, and artifacts are often found in the Yakima graves but they seldom, if ever, occur with ancient burials on the coast.