[Herbert C. Kraft et al. (1994)] It came from a large clump of burned wood retrieved at a depth of 107 cm buried by 82 cm of slope wash. This hearth also yielded a projectile point typed as a Rossville (according to Stuart Fiedel, Ed Curtin, Russel Handsman) or a Stark (in the opinion of Robert Funk). From lower in the square came a point designated by Funk as a Drybrook fishtail. Both the remaining charcoal dates are unacceptable given the types of projectile points found in their Dating collagen is not without its problems. Preeminent among these for the Dogan Point situation is that the usable life of collagen is only about 5000 years (Tom Stafford, personal communication 1990). Given that this site has been demonstrated to be older, the one antler employed was an inappropriate choice for dating. Brennan had the collagen content of bone from South Hillside midden site, an unreported site, measured. The sample was divided into two groups, based on color: a dark group and a light, nearly white group. With the collagen content of fresh bone running to about 25 percent of bone weight, the collagen in the dark bone was assayed at 5.4 percent and that in the light bone at 4.8 percent. Some other factor than loss of collagen therefore must account for the blanching of some bone as compared with others, since the Figure 5. Dogan Point raw radiocarbon dates. 35 The Bulletin vicinity, found at the site in general, and for the depth of these hearths.