Written in 1871, this book is designed for the use of students of the University. The contents include: General Recognition of the Air as the Medium which Conveys Sound; Properties of Air, on which the Formation and Transmission of Sound Depend; Theory of Undulations, as Applied to Sound; and Investigation of the Passage of a Wave of Air Through a Cylindrical Pipe or of a Plane Wave Through the Atmosphere Generally; Investigation of the Motion of a Wave of Air through the Atmosphere Considered as of Two or Three Dimensions; and Transmission of Waves of Soniferous Vibrations through Different Gases, Solids and Fluids. It also includes: Experiments on the Velocity of Sound and on the Pressure Accompanying Atmospheric Waves; and Comparison of the Experimental Results with the Results of Theory; On Musical Sounds and the Manner of Producing Them; On the Elements of Musical Harmony and Melody and of Simple Musical Composition; On Instrumental Music and the Adaptations of Music Required by Special Instruments; and On the Human Organs of Speech and Hearing.