Errors in Morse and Ingard's treatment of the topic of weakly-nonlinear acoustics in Sec. 6.2 of their book [Theoretical Acoustics (1968)] are noted and corrected.

Topics
Nonlinear acoustics, Speed of sound, Acoustic field, Acoustic signal processing, Equilibrium thermodynamics, Hamiltonian mechanics, Physics of gases, Thermodynamic properties, Calculus of variations, Bernoulli's principle
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U.S. Government
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