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☆ Partly extracted from a paper read at the Inter-Territorial Jubilee Meetings of East African branches of the B.M.A., September, 1947, at Kampala.
My grateful acknowledgements are due to Dr. R. Kirk in connection with the onchocercal survey and antigen work; to Professor S. Bocx, of Stockholm, for assistance with photographs and paintings; to Commander T. K. RuEBUSH, M.s.c., U.S.N., Department of Tropical Medicine, Naval Med. Centre, Bethesda, Washington, U.S.A., for helpful criticism; and to the Director of Sudan Medical Services for permission to publish this paper.
