. Bulletin. Natural history; Science. NSF Grant for Analysis of Isimila Site Materials Field Museum has been awarded a grant of 537,600 by the National Science Foundation for support of research entitled "Analysis of Isimila Site ; The two-year program is under the direction of Dr. Glen H. Cole, associate curator of prehistory at the tvluseum, and Dr. Maxine R. Kleindienst, presently of Toronto, Canada, Isimila is located in the Southern Highlands Province of Tanzania, Africa. It is considered to be of particular importance because of the profusion of stone implements that
. Bulletin. Natural history; Science. NSF Grant for Analysis of Isimila Site Materials Field Museum has been awarded a grant of 537,600 by the National Science Foundation for support of research entitled "Analysis of Isimila Site ; The two-year program is under the direction of Dr. Glen H. Cole, associate curator of prehistory at the tvluseum, and Dr. Maxine R. Kleindienst, presently of Toronto, Canada, Isimila is located in the Southern Highlands Province of Tanzania, Africa. It is considered to be of particular importance because of the profusion of stone implements that were found in archaeological context in the various horizons of human occupation at the site, dating from the tvliddle Pleistocene Epoch. The tool-making culture is known as Acheulean, after the place (St. Acheul) in northern France where well known occurrences of such tools were found. Estimates place the Acheulean culture from about 75,000 to 500,000 or more years ago. Isimila, an undisturbed site, was discovered in 1951 as a result of extensive erosion that exposed a large number of stone tools. Steady deposition of sand and silt in a basin that had alternately been a marsh and shallow pond eventually filled it to a depth of more than 60 feet. Five distinct beds of coarse sediment were found. The top three layers, which were liberally covered with artifacts, were excavated extensively. The uncovering of several occupation areas on each level, nine in the upper three and one in the fourth, provided an opportunity to compare different assemblages of tools known to be roughly contemporaneous. The Acheulean industry at Isimila comprises a wide range of implement types, including hand-axes, cleavers, scrapers, choppers and picks, made from a variety of stone material. The many types of tools found at various places within a single level indicate different activities by members of the same group. The variations in style may also suggest that more than one group of early men occupi
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