Introductory Lectures.- Progress in the Synthesis and Application of Polymers.- Mechanical Behavior of High Polymers — Overview and Historic Remarks.- Deformations and Molecular Motions in Polymers Above the Glass Transition Temperature.- On the Interconversion of Linear Viscoelastic Functions with Special Application to Shear Behavior in the Glass-Rubber Transition Region.- Materials with Memory.- Methods of Combustion Theory in the Mechanics of Deformation, Flow, and Fracture of Polymers.- Phenomenology.- On the Nonlinear Biaxial Stress-Strain Behavior of Rubberlike Polymers.- On the Phenomenology of Rubberlike Behavior.- Fracture and Fiber Formation of Polyethylene Crystals.- The Microstructure and Properties of Crazes.- Effects of Hydrostatic Pressure on the Deformation and Fracture of Polymers.- Attempt to Explain Crazing in Amorphous Thermoplastics and Adhesion Fractures in Semicrystalline Thermoplastics and Filled Polymers.- Molecular Descriptions of Deformation.- Rate Processes in the Plastic Deformation of Polymers.- Deformation of Cross-Linked Polymers Below Tg.- Time-Temperature Superposition in Heterophase Block Copolymers.- Load-Extension Curves and Fracture Toughness.- Deformation of Polymers as Explained by the Meander Model.- The Role of Intra- and Intermolecular Cohesion in Fracture Initiation of High Polymers.- Continuum Descriptions of Deformation.- Plastic Deformation of Crystalline Polymers in Solid-State Extrusion through a Tapered Die.- Nonlinear Behavior of Polyisobutylene Solutions.- The Viscoelastic-Plastic Behavior of a Ductile Polymer.- The Effect of Different Behavior in Tension than in Compression on the Mechanical Response of Polymeric Materials.- A Deformation Theory of Polymers.- Fracture.- Crack Growth and Failure in Rubbers.- Fast Fracture in PMMA.- Fracture Dynamics of Homolite-100.- On the Steady Propagation of a Crack in a Viscoelastic Sheet: Experiments and Analysis.- The Role of Failure Criteria in the Fracture Analysis of Fiber/Matrix Composites.- Thermal and Environmental Effects in Craze Growth and Fracture.- Critical Issues.- Concluding Agenda Discussion: Critical Issues.