Reprint from the original 1882 edition. Excellent book. Profusely illustrated. Covers: Acoustics, Numeric Valuation, Modes of Vibration, Analysis of Sound, Consonance, Dissonance and Resultant Tones, Propagation of Light, Reflection, Refraction, Lenses, Optical Instruments, Spectra, Color, Wave Theory and Polarization. One of the best foundation texts on sound and vibration basics. 8.5" X 11"