Book Reviews : Edward C. Tabler, Pioneers of Natal and Southeastern Africa 1552-1878. Rotterdam, Cape Town, A. A. Balkema, 1977, 117 pp. $ 14.50. Richard Elphick, Kraal and Castle: Khoikhoi and the Founding of White South Africa. New Haven, Yale University Press, 1977, xxii, 226 pp., $ 17.50. Jeffrey Butler, Robert Rotberg and John Adams, The Black Homelands of South Africa: The Political and Economic Development of Bophuthatswana and Kwazulu. Berkeley, University of California Press, 1977, x, 250 pp., $ 12.50