Comments on "Acoustic wave propagation through porous media revisited" [J.Acoust. Soc. Am. 100, 2949-2959 (1996)]

In a 1996 paper by T. W. Geerits, published in this Journal, it was claimed that a new theory for acoustic wave propagation in porous media was derive d. It will be shown that this claim is not justified. Correct application o f the averaging procedures and correct interpretation of the dissipation le ads to a one-to-one agreement with the Blot theory, which was published in this Journal in 1956 [M. A. Biot, J. Acoust. Soc. Am. 28, 168-178, 179-191 (1956)]. (C) 1999 Acoustical Society of America. [S0001-4966(98)00210-0].