Louis Seymour Bazett Leakey (1903-72) was a British archaeologist, naturalist and palaeoanthropologist who made a significant contribution to the study of human evolutionary development. First published in 1931, this work presents the results of two periods of excavation by the East African Archaeological Expedition during 1926-7 and 1928-9. As noted in the preface, the findings of these excavations enabled the Expedition 'to work out a number of...