Notebook with notes and calculations, headed Cycloidal System, energy properties, determination of coefficients by energy properties, No potential energy, Conservation system again, Equal roots, Theory of Elasticity, Principle of energy in Abstract Dynamics, Generalized Equations of Motion, Least Action for a Single Particle, Variable connections, Ignoration of Variables, Stresses in Fluids, Homogenous Solid Sphere - Surface displacements given, Torsion of Prisms, Viscous Fluid Energy and Dissipativity, Perfect Fluid, Short Summary of the Thermodynamic Laws, Maxwell's stresses, The Electric Stresses, The Tension of Suspended Wires and the Influence of Temperature on them dated 1878, Viscous Elastic Solid, Current of water in a Pipe, Imperfection of Analogy between Viscous Solid and Electromagnetic medium, Dated October 1888, Thomson's Rotational Ether dated January 1891, Undistorted Transmission of Plane Aerial Waves, Lateral Vibrations of Bars, with later annotations including notes 'Added 1891' and 'Added 1904'. From the other end of the volume there are pages of pencil MS notes and calculations, mostly without a heading but one draft of paper headed The Radiation from an Electron in a circular orbit. Also draft of letter in response to J J Buchanan's article on the French Academy, which published any of its members' work, and comparing the situation in England, where he cannot get his work published (p 348).