The Structure of the Great Rift Valley

Abstract

THE difference as to the faults between the figure in NATURE of October 6 and that in Prof. Emmons's book is that he copied the original section of 1916, whereas the figure in NATURE gives the modified section published by the Geological Survey of Egypt in its Petroleum Research Bulletin No. X. Dr. Hume's letter published in NATURE of January 12, 1924, confirms the later section. Mr. E. J. Way-land's summary of the recent progress in the investigation of the Rift Valley in the Uganda Protectorate is of great value, and he and his colleagues are to be congratulated on their interesting results. The fifth point he mentions agrees with the pivotal movements on east and west axes in the eastern branch of the Rift Valley in Kenya Colony. The results already announced indicate that Mr. Way-land's full report on the geology of the Rift Valley in the Uganda Protectorate will be a most important contribution to African geology.