Book review essays : The search for spatial truth: Ebdon, D. 1977: Statistics in geography: a practical approach. Oxford: Basil Blackwell. viii + 195 pp. 5.50. Lewis, P. 1977: Maps and statistics. London: Methuen. xvii+318 pp. 9.50 cloth, 5.95 paper. Norcliffe, G. B. 1977: Inferential statistics for geographers: an introduction. London: Hutchinson. 272 pp. 6.95 cloth, 3.50 paper. Taylor, P. J. 1977: Quantitative methods in geography: an introduction to spatial analysis. Boston and London: Houghton Mifflin. x+386 pp. 12.50 ($23.95)