Proceedings of the 23rd Seismic Research Review: Worldwide Monitoring of Nuclear Explosions October 2-5, 2001 Jackson Hole, Wyoming This hybrid CD contains a catalog of proceedings suitable for Windows, Macintosh, and UNIX platforms. All of the papers in this catalog are in Portable Document Format (PDF). You will need a PDF viewer such as Adobe Acrobat Reader to view these papers. You should have the most current version of this software for your platform (5.0 for Windows and Macintosh, and 4.05 for UNIX) installed as either a helper application or plug-in for your browser in order to view these documents efficiently using the HTML files (start with Cover.htm), which serve as navigation tools through this catalog of proceedings. For your convenience, we provide installers for most popular platforms with this CD in the \install\acroread folder. Use the AcroRead.htm file to select the appropriate installer, or go directly to Adobe's website to obtain the free software. Older versions of Acrobat Reader, or other PDF viewers may not display some of the figures correctly. This CD catalog contains two versions of the proceedings: a print-optimized version as well as a screen-optimized version. The print-optimized files have better resolution, but are larger in size; the screen-optimized files are generally smaller in size and display more quickly, but the type and figures may not be as clear or crisp when printed. In addition, the full set of PDF files sent to the print shop are included on this CD in the HardCopy folder. If you want to print an entire section, or a volume, or the entire set of proceedings, you can find all of the files you would need in this folder, including the Acknowledgements, section separators, cover pages and Table of Contents files for each of the volumes. This set of proceedings is also available on-line at http://www.nemre.nn.doe.gov/review2001/. If any errors are discovered after the CDs are burned and the files for the hard-copy version are sent to the publisher (about September 1, 2001), revisions will be posted to this website. The proceedings on this CD have been cataloged so that Acrobat Reader with Search can be used to query the whole set. To use Acrobat Reader with Search: 1) Edit -> Search -> Select Indexes -> Add. Browse the CD and select the Print folder and then the index.pdx file. 2) Edit -> Search -> Query. Enter a word or phrase to search for and click the Search button. A list of titles that contain the word or phrase displays in the Search Results window. Click on a title and either the View or Info button. A note about page numbers: The page numbers on the papers correspond to the printed hard-copy, which was published in two volumes: Volume I contains all Seismic sections, and Volume II contains everything else. The page numbers reset in Volume II so the first paper in each volume begins on page 3 (pages 1 and 2 are the section title pages - front and back). When citing papers from this set of proceedings, authors must identify the volume number as well, as the page numbers alone are not sufficient. If you discover any typos or errors, please report them to the Editor, Dr. Jill Warren, at jwarren@lanl.gov. If you encounter problems with the website or CD, please contact the Webmaster, Mary Girven, at mlgirve@sandia.gov.