Preface.- 1.Introduction.- 2.1920-1939.- 2.1.Overview of Chapter 2.- 2.2.Neyman-Fisher-Geary and the Beginning.- 2.3.Fisher and the Variance-ratio Statistic.- 2.4.Eden-Yates and Non-normal Data.- 2.5.Fisher and 2 by 2 Contingency Tables.- 2.6 Yates and the Chi-squared Test for Small Samples.- 2.7.Irwin and Fourfold Contingency Tables.- 2.8.The Rothamsted Manorial Estate.- 2.9.Fisher and the Analysis of Darwin's Zea mays Data.-...