[NYSAA (1986)] and Funk assign to the type, Jack's Reef Corded Collar (1973:164, plate 80, no. 6). This is a Middle Woodland type, associated with a C-14 date of A.D. 630±100 at the Kipp Island site. So, the Ossining sherds probably date to some time between A.D. 600 and 1200. Occupation of the rockshelter during this period is confirmed by the presence of a Levanna point. As mentioned above, Case discovered shell-tempered sherds that he arranged to form a nearly complete vessel (Figure 10). This pot measured 14 inches in diameter and 16 inches high. Its rim was slightly flared and was stamped with fine parallel lines. A zig-zag line was incised on the vessel's shoulder. It is possible that some of the shell-tempered sherds we found (Figure 8a) belong to the same vessel. An estimate of the original vessel's diameter, based on the curvature of the largest sherds found, is 33 cm, which agrees quite well with Case's estimate. The incised lines, 2-3 mm wide, found on the exterior surfaces of 5 sherds (Figure 8a), may well have formed part of the zig-zag design illustrated by Case. On one sherd, 2 parallel lines occur; parallel lines can also be seen in Case's photograph. However, the dark 41 perhaps the result of burnishing. A vague stylistic similarity to Ritchie and Funk's Castle Creek Incised Neck type (1973: plate 161, no. 8) and to the coastal Bowman's Brook Incised type suggests a Late Woodland date for Case's pot and our shell-tempered sherds. Our discovery of 3 small lumps of buff-colored clay, one of which had clearly been kneaded between someone's fingers, raises the possibility that pottery was actually made at the rockshelter. There are clay deposits along the nearby stream, and fragments of the oyster shells that had been carried to the rockshelter from the Hudson could have been used for temper. Several thousand bone fragments were recovered from the rockshelter (see table). Animals represented by these remains include: white-tailed deer, turkey, turtle, snake, skunk, raccoon, woodchuck, rabbit, squirrel, and fish. Geese may also be present, and other unidentifiable small birds are represented by small, thin-walled, broken and burned bones. The woodchuck bones include a nearly intact skull and several mandibles, as well as whole limb bones and vertebrae. None of these bones show evidence of having been cooked, which suggests that the woodchucks were not eaten by the human inhabitants of the site, but instead died there while hibernating. The same is probably true of the chipmunks, voles, and shrews. About 120 more or less intact oyster valves, and numerous oyster shell fragments, were found, as well as many small pieces, and 1 whole shell, of ribbed mussel. These shells must have been carried from the Hudson River to the rockshelter. Four pieces of scallop shell, and 84 pieces of the shells of small clams, were probably brought to the site from Long Island Sound. It was apparently not unusual for shellfish to be carried for considerable distances away from the shore, as Harrington (1909) found shells in rockshelters near Armonk, some 15 miles from the Sound. The oyster shells from the Ossining rockshelter measure from 4 to 9 cm in length; oysters of this size are associated with Late Archaic and Transitional artifacts in middens along the Lower Hudson. Brennan (personal communication) found ribbed mussel shells only in "giant oyster" middens, which may date to Middle Archaic times. However, at the rockshelter, mussel shells were clearly associated with small oyster shells. The seeming association of oyster shells with a Levanna point, as well as the inclusion of crushed shell in Late Woodland pottery, indicate that oysters were still being taken from the river in Late Woodland times. Recent finds at the Piping Rock site, on the east bank of the Hudson, support this conclusion (Wingerson, personal communication). Charred pieces of hickory nutshells are the only remnants of the vegetal portion of the prehistoric inhabitants' diet. These nutshells imply occupation of the rockshelter during the fall. The fish vertebrae, shellfish valves, snake vertebrae, and turtle shell and bones suggest that the site was occupied during the spring, summer, or fall. Analysis of the deer remains provides rather tenuous evidence of fall occupation. Based on comparative study of the teeth, it seems that a minimum of 3, possibly 4 deer were butchered at the site. Their ages at death were: 1) 1 year, 4-5 months; 2) 2 1/2 years; 3) 8-10 years; 4) more than 6 years (possibly the same individual as #3). Deer generally give birth in late May or early June; thus, we can infer that deer #1 was killed in September or October, and deer #2 was probably killed around November. These death-dates support the assumption that rockshelters were occupied primarily during the fall and winter. Point typology indicates that