Book reviewed in this article: The Agricultural Register. (New Series.) Changes in the Economic Pattern, 1956–57. Agricultural Economics Research Institute, University of Oxford, 1957. Fifty Years of Farm Management. By H. C. M. Case and D. B. Williams. Resource Productivity, Returns to Scale, and Farm Size. Edited by Earl O. Heady, Glenn L. Johnson and Lowell S. Hardin. A Symposium on the Operating Costs of Machinery in Tropical Agriculture. Colonial Office. H.M.S.O., 1957. Estate Capital: The Contribution of Landownership to Agricultural Finance. By D. R. Denman. Colonial Agriculture Statistics: the Organization of Field Work. By K. E. Kent. Program for the 1960 World Census of Agriculture. F.A.O., Rome, 1957 English Peasant Farming. By Joan Thirsk. Where London Ends. English Provincial Life After 1750: Being an account of the English country town and the lives, work and development of provincial people through a period of two hundred years. By E. W. Martin.