Acoustics, Introductory-Wave Motion, Velocity of Sound0-Transmission through Gases, Liquids, and Solids, Reflexion of sound the ear inteference, Musical sounds determination of the number of vibrations, Transverso vibration of strings, Vibrations of columns of air the human voice sensitive flames, Theories of light photometry velocity, Refleion of light, Refraction of light, The eye far sight and short sight, Dispersion properties of spectrum, Colout spectrum analysis, Optical spectrum analysis, Optical Instruments, Interference of light diffraction, Polarization of light, Interference of polarised light chromatic effects circular and Elliptical polarization, Theories of heat expansion of solids, Expansion of liquids thermometry, Ebullition fusion congelation, Expansion of gases winds, vapour rain snow, Calorimetry latent heat, convection conduction combustion, Radiation absorption diathermancy, Dynamical principles mutual convertibility of heat and work mechanical equivalen of heat,