1. R. Murray Schafer, The Tuning of the World, A.A. Knopf, New York, NY, 1977, p. 71.
2. R. Bruce Lindsay, J. Acoust. Soc. Am. 37, 357–381 (1965).
3. And it continues to evolve; the Editor-in-Chief of JASA periodically issues a revision of the topics.
4. The term “solid state physics” was gradually replaced toward the end of this interval by “condensed matter physics,” largely because the general area of interest also included work in liquid helium, as well as other low-temperature phenomena.
5. K.F. Herzfeld, Phil. Mag. 9, 741–746 (1930).