This is the first of a series of progress reports on African archaeology in the United States, which will appear at regular intervals in the African Studies Bulletin.

J. Desmond Clark, University of California, Berkeley, has completed work on the first volume of the Kalambo Falls Prehistoric Site monograph, which deals with geology, palaeoecology, and the detailed stratigraphy. It will be published by the Cambridge University Press. The Atlas of African Prehistory has now been published as has The Background to Evolution in Africa, edited jointly with W. W. Bishop. Interim reports on research work in the Malawi Rift and a monograph on the paleoanthropology of Northern Lunda have gone to press, while work is proceeding on a new edition of the Prehistory of Southern Africa. The Twin Rivers Middle Stone Age aggregates have been analyzed by graduate students under Professor Clark's supervision, and the first of two films on stone flaking and the manufacture of tools by percussion and pressure has been completed. The second will be ready in 1968. The year has been devoted to publication, analysis of data, and teaching.

Glen Cole, Field Museum of Natural History, Chicago, received a research grant from the National Science Foundation for an investigation of Upper Pleistocene industries of East Africa. This is to permit analysis of a considerable amount of data accumulated during a period of two and a half years in Uganda, mostly from the Nsongezi area, pertaining to Acheulian, Sangoan, and so-called Middle Stone Age industries.