HOLOCENE PALEOECOLOGY AND LATER STONE AGE HUNTER-GATHERER ADAPTATIONS IN THE SOUTH AFRICAN INTERIOR PLATEAU A Dissertation Presented to the Graduate Faculty of Dedman College Southern Methodist University in Partial Fulfillment of the Requirements for the degree of Doctor of Philosophy with a Major in Anthropology by Charles Britt Bousman (B.S., Southern Methodist University, 1974) (B.A., Cambridge University, 1976) (M.A., Cambridge University, 1980) (M.A., Southern Methodist University, 1987) May 18, 1991