chapter 1 General Introduction to QSAR -- chapter 2 Mechanisms of Action of Chemical Carcinogens and Their Role in Structure�Activity Relationships (SAR) Analysis and Risk Assessment / chapter 3 QSARs for Individual Classes of Chemical Mutagens and Carcinogens / chapter 4 QSARs for the Mutagenicity and Carcinogenicity of the Aromatic Amines / chapter 5 Public Sources of Mutagenicity and Carcinogenicity Data: Use in Structure�Activity Relationship Models / chapter 6 SAR in the Assessment of Carcinogenesis: The MultiCASE Approach / chapter 7 Predicting Mutagenicity of Congeneric and Diverse Sets of Chemicals Using Computed Molecular Descriptors: A Hierarchical Approach / chapter 8 Quantitative Structure�Activity Relationships for Acute Aquatic Toxicity: The Role of Mechanism of Toxic Action in Successful Modeling / chapter 9 SARs and QSARs of Mutagens and Carcinogens: Understanding Action Mechanisms and Improving Risk Assessment