Journal Article Robert I. Rotberg. Joseph Thomson and the Exploration of Africa. New York: Oxford Uni versity Press. 1971. Pp. 360. $10.00 and Robert I. Rotberg, editor. Africa and Its Explorers: Motives, Methods, and Impact. Cambridge, Mass.: Harvard University Press. 1970 Pp. 351. $12.95 Get access Rotberg Robert I.. Joseph Thomson and the Exploration of Africa. New York: Oxford Uni versity Press. 1971. Pp. 360. $10.00. Rotberg Robert I., editor. Africa and Its Explorers: Motives, Methods, and Impact. Cambridge, Mass.: Harvard University Press. 1970 Pp. 351. $12.95. John P. Halstead John P. Halstead State University of New York, Buffalo Search for other works by this author on: Oxford Academic Google Scholar The American Historical Review, Volume 77, Issue 3, June 1972, Pages 813–814, https://doi.org/10.1086/ahr/77.3.813 Published: 01 June 1972