Introduction, Thermometry or the registration of temperature, Calorimetry or the measurement of heat, Elementary dynamical principles, Measurement of internal forces and their effects, Lines of Equal temperature on the indicator diagram, Adiabatic lines, Heat engines, Relations between the physical properties of a substance, Latent heat, Thermodynamics of Gases, On the intrinsic energy of a system of bodies, On free expansion, Determination of heights by the barometer, On the propagation of waves of longitudinal disturbance, On radiation, On convection currents, On the Diffusion of heat by conduction, On the diffusion of fluids, On capillarity, On Elasticity and viscosity, Molecular theory of the constitution of bodies