My review copy came with the following note attached:

Dear Reviewers of Sounds in the Sea: 

Some of us have the audacity to believe that ocean exploration is more important to mankind than space exploration. And we have the wisdom to understand that current acoustical studies, which use frequencies from a fraction of a hertz to several megahertz, and which include ranges up to half way around the world, are far more effective at sea than optical efforts which operate over only a single octave (frequency ratio 2 to 1) and achieve ranges of only a few meters...

Munk, W. 2006. Review of Sounds in the Sea: From Ocean Acoustics to Acoustical Oceanography, by H. Medwin. Oceanography 19(1):192–194, https://doi.org/10.5670/oceanog.2006.106.

This is an open access article made available under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/), which permits use, sharing, adaptation, distribution, and reproduction in any medium or format as long as users cite the materials appropriately, provide a link to the Creative Commons license, and indicate the changes that were made to the original content. Images, animations, videos, or other third-party material used in articles are included in the Creative Commons license unless indicated otherwise in a credit line to the material. If the material is not included in the article’s Creative Commons license, users will need to obtain permission directly from the license holder to reproduce the material.