The present volume makes available in one convenient place all the research papers published by Raymond D. Mindlin in the course of a half-century of professional activity. Included, in addition, is the full text of three of his extended review articles, because these remain timely as well as historically important. Also to be found here is a brief sketch, written by one of us, his student and co-author, colleague and friend. It contains Mindlin's basic biographical data, although it dwells primarily on an analysis of his work and a chronicling of his accomplishments. The papers reprinted herein are reproduced photographically as they ap peared originally. We have excluded several short review articles; moreover, to our regret, because of constraints of space we have been unable to print three extended reviews. These are: "The photoelastic method of stress analy sis," published in volume 10 of the Journal of Applied Physics; a short mono graph, "Dynamics of package cushioning," which may be found in volume 24 of the Bell System Technical Journal; and the chapter entitled "Analogies," written for the Handbook of Experimental Stress Analysis.
 A Reflection Polariscope for Photoelastic Analysis.-  Structural Beams in Torsion.-  Contribution au Problème d'Équilibre de l'Élasticité d'un Solide Indéfinie Limité par un Plan.-  Force at a Point in the Interior of a Semi-Infinite Solid.-  Note on the Galerkin and Papkovitch Stress Functions.-  Stresses Around Circular Holes in Dams and Buttresses.-  Pressure Distributions on Retaining Walls.-  Analysis of Doubly Refracting Materials with Circularly and Elliptically Polarized Light.-  Stress Systems in a Circular Disk Under Radial Forces.-  Distortion of the Photoelastic Fringe Pattern in an Optically Unbalanced Polariscope.-  The Equiangular Strain-Rosette.-  Stresses in a Heavy Disk Suspended from an Eccentric Peg.-  Stresses in an Eccentrically Rotating Disk.-  Gravitational Stresses in Bipolar Coordinates.-  Stress Distribution Around a Tunnel.-  Stress Analysis by Three-Dimensional Photoelastic Methods.-  An Extension of the Photoelastic Method of Stress Measurement to Plates in Transverse Bending.-  Optical Aspects of Three-Dimensional Photoelasticity.-  The Analogy Between Multiply-Connected Slices and Slabs.-  Stress Distribution Around a Hole Near the Edge of a Plate Under Tension.-  Response of Damped Elastic Systems to Transient Disturbances.-  The optical equations of three-dimensional photoelasticity.-  A Mathematical Theory of Photo-Viscoelasticity.-  Compliance of Elastic Bodies in Contact.-  Thermoelastic Stress Around a Cylindrical Inclusion of Elliptic Cross Section.-  Beam Vibrations with Time-Dependent Boundary Conditions.-  Nuclei of Strain in the Semi-Infinite Solid.-  Thermoelastic Stress in the Semi-Infinite Solid.-  Influence of Rotatory Inertia and Shear on Flexural Motions of Isotropic, Elastic Plates.-  Thickness-Shear and Flexural Vibrations of Crystal Plates.-  A One-Dimensional Theory of Compressional Waves in an Elastic Rod.-  Effects of an Oscillating Tangential Force on the Contact Surfaces of Elastic Spheres.-  Forced Thickness-Shear and Flexural Vibrations of Piezoelectric Crystal Plates.-  Response of an Elastic Cylindrical Shell to a Transverse, Step Shock Wave.-  Elastic Spheres in Contact Under Varying Oblique Forces.-  Force at a Point in the Interior of a Semi-Infinite Solid.-  Thickness-Shear and Flexural Vibrations of Contoured Crystal Plates.-  Thickness-Shear Vibrations of Piezoelectric Crystal Plates with Incomplete Electrodes.-  Suppression of Overtones of Thickness-Shear and Flexural Vibrations of Crystal Plates.-  Thickness-Shear and Flexural Vibrations of a Circular Disk.-  Axially Symmetric Flexural Vibrations of a Circular Disk.-  Timoshenko's Shear Coefficient for Flexural Vibrations of Beams.-  Thickness-Shear and Flexural Vibrations of Rectangular Crystal Plates.-  High-frequency extensional vibrations of plates.-  Flexural Vibrations of Rectangular Plates.-  Simple Modes of Vibration of Crystals.-  Waves on the Surface of a Crystal.-  Influence of Width on Velocities of Long Waves in Plates.-  Stress-Strain Relations and Vibrations of a Granular Medium.-  Vibrations of a Monoclinic Crystal Plate.-  Vibrations of an Infinite, Elastic Plate at its Cut-Off Frequencies..-  Extensional Vibrations of Elastic Plates.-  Axially Symmetric Waves in Elastic Rods.-  Vibrations and Waves in Elastic Bars of Rectangular Cross Section.-  Dispersion of Flexural Waves in an Elastic, Circular Cylinder.-  Extensional Vibrations and Waves in a Circular Disk and a Semi-Infinite Plate.-  Waves and Vibrations in Isotropic, Elastic Plates.-  High Frequency Vibrations of Crystal Plates.-  On the Equations of Extensional Motion of Crystal Plates.-  On the Equations of Motion of Piezoelectric Crystals.-  Forced Vibrations of Piezoelectric Crystal Plates.- [6
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