THEORETICAL GENETICS 1
Dominance,Genotype-Environment Interaction,and Homeostasis＆by R．E．COMSTOCK 3
The Balance-sheet of Variability＆by K．MATHER 10
Biometrical Relations between Relatives and Selection Theory＆by OSCAR KEMPTHORNE 12
The Effects of Inbreeding when Selection Acts Against Homozygosis at One or More Loci＆by E．C．R．REEVE and J．C．GOWER 24
High Speed Selection Studies＆by FRANK G．MARTIN,JR．and C．CLARK COCKERHAM 35
Genetic and Statistical Theory for Quantitative Inheritance Studies of Haploids＆by D．S．ROBSON 46
The Problems of Multifactorial Genetic in Man＆by F．KEITER 65
Simulation of Genetic Systems by Automatic Digital Computers．5-Linkage,Dominance and Epistasis＆by A．S．FRASER 70
A Model of a Host-Pathogen System with Particular Reference to the Rusts of Cereals＆by CHARLES F．MODE 84
DESIGN OF EXPERIMENTS 99
Experimental Design on the Measurement of Heritabilities and Genetic Correlations＆by ALAN ROBERTSON 101
The Interpretation of Calculated Heritability Coefficients with regard to Gene and Environment Effects as well as to Genotype-Environment Interactions＆by HENRI L．LE ROY 107
An Experimental Design for Separating Genetic and Environmental Changes in Animal Populations under Selection＆by KENNETH GOODWIN,G．E．DICKERSON and W．F．LAMOREUX 117
The Estimation of Variance Components in Certain Types of Experiment on Quantitative Genetics＆by J．A．NELDER 139
Importance of Genotype-Environment Interactions in Random Sample Poultry Tests＆by A．W．NORDSKOG and O．KEMPTHORNE 159
EXPERIMENTAL RESULTS 169
Studies on Estimation of Dominance Variance and Effects of Linkage Bias＆by H．F．ROBINSON,C．CLARK COCKERHAM and R．H．MOLL 171
An Experimental Check on the Accuracy of Prediction of Response during Selection＆by G．A．MARTIN and A．E．BELL 178
Predominance of Hybrid Losses or Negative Heterosis in Mouse Crosses＆by R．W．MASON,H．H．NICHOLSON,RALPH BOGART and HUGO KRUEGER 188
The Use of Correction for Regression on a Second Character to Increase the Efficiency of Selection＆by A．F．PURSER 210
Endocrine Variation:Heritability of Iodine Metabolism in the Thyroids of Mice＆by C．K．CHAI 215
AUTHOR INDEX 225
INDEX 227