On the Criterion that a Given System of Deviations from the Probable in the Case of a Correlated System of Variables is Such that it Can be Reasonably Supposed to Have Arisen from Random Sampling -- The Probable Error of a Mean -- Statistical Methods for Research Workers -- The Arrangement of Field Experiments -- On the Empirical Determination of a Distribution -- On the Two Different Aspects of the Representative Method: The Method of Stratified Sampling and the Method of Purposive Selection -- Relations Between Two Sets of Variates -- Individual Comparisons by Ranking Methods -- On Some Useful "Inefficient" Statistics -- Testing for Serial Correlation in Least Squares Regression. I -- Testing for Serial Correlation in Least Squares Regression. II -- On the Experimental Attainment of Optimum Conditions -- Nonparametric Estimation from Incomplete Observations -- Sequential Design of Experiments -- Some Statistical Aspects of Adaptive Optimization and Control -- The Future of Data Analysis -- Maximum Likelihood in Three-Way Contingency Tables -- Robust Estimation of a Location Parameter -- Regression Models and Life-Tables -- Generalized Linear Models -- Bootstrap Methods: Another Look at the Jackknife.