Calladine's Contribution -- Some Thoughts on Research -- Publications by C.R. Calladine -- Structural Mechanics -- Collapse Behavior of Expandable Slotted Tubes -- Laws of Evolution of Cracks in Plates in Terms of Stress Resultants -- Nesting Surfaces and Constitutive Laws for the Inelastic Behaviour of Composite Materials -- On the Rotation Capacity of Reinforced Concrete Structural Elements -- The Topology of Cellular Structures -- Symmetry Analysis of the Double Banana and Related Indeterminate Structures -- Large Deflections of a Cantilever -- Rose Windows -- Joining of Metal Matrix Composites -- Utilising Tension in Lightweight Structures -- Elastic Minimum-Weight Design: an Encounter with Alan Turing -- Engineering and Education -- Prediction of Buckling Load from Vibration Measurements -- Non-Collinearly Loaded Laminae -- Linear Matching Methods for Shakedown Analysis -- Analysis of Coiled Piezoelectric Structures -- Frictional Impact in Mechanisms -- Rigidity and Stability of Prestressed Infinitesimal Mechanisms -- Amplitude of Wrinkles in Thin Membranes -- Shell Structures -- On a High-Fidelity Hierarchical Approach to Buckling Load Calculations -- Cat Eardrum Response Mechanics -- Inversion of Metal Cylinders -- Failure Criteria for Shells on Local Brackets -- PCCP Shells -- Pogorelov's Theory of Creases, and Point Loads on Thin Cylindrical Shells -- Shell Buckling and Collapse Analysis for Structural Design -- Bifurcation Buckling of Spherical Sandwich Shells under External Pressure in Plastic Range -- The Prerequisites for an Advanced Design Methodology in Shells Prone to Buckling -- Biological Structures -- Chris Calladine and Biological Structures: A Personal Account -- Calladine's Entry to the World of DNA -- Morphological and Topological Transformation of Liposomes -- Computational Approaches to Predicting Sequence-Structure Relationships in DNA -- Understanding Biological Machines Using Household Items: Some Insightful Constructions from the Calladine Workshop -- Measurement of DNA Bend Angles Using DNA Topology -- Structural Insight into the Mechanism of Supercoiling of the Bacterial Flagellar Filament -- Coils and Supercoils in Proteins -- Supercoiling of DNA Molecules -- Author Index.