Introduction, Concepts and Methods.- The Statistical Methods and Their Results.- Premendelian Theories of Genetics.- The Rise of the Experimental Method.- The Results of Mendel’s Experiments and of Analogous Investigations.- The Reliability of Segregation Ratios.- Relations Between Genes I.- Relations Between Genes II.- The Mutual Similarity of the F1-Individuals.- The Mutual Similarity of Reciprocal Crosses.- Localization of the Factors.- Regularity and Irregularity in Chromosome Configurations.- The Mechanism of the Exchange of Genes.- The Nature of Genes.- The Role of the Plasm.- The Moment of Factor Segregation.- True-Breeding Hybrids.- Sex as a Genetic Characteristic and a Genic Expression.- Change in the Heritable Predisposition of the Individual.- Changes of Heritable Tendencies in Pure Lines and Populations.- The Development of the Individual and Its Heritable Tendency.- The Boundary of Genetics and its Applications.
