1. University of Arizona, 1040 E 4th Street, Tucson, Arizona 85721, U.S.A.
2. Geophysical Laboratory, Carnegie Institution, 5251 Broad Branch Road NW, Washington, D.C. 20015, U.S.A.
3. † Special collection papers can be found online at http://www.minsocam.org/MSA/AmMin/special-collections.html.
4. NASA Ames Research Center, Moffett Field, California 94035, U.S.A.
5. Rensselaer Polytechnic Institute (RPI) 110 Eighth Street, Troy, New York 12180, U.S.A.
6. Planetary Science Institute, 1700 E. Fort Lowell, Tucson, Arizona 85719-2395, U.S.A.
7. NASA Johnson Space Center, Houston, Texas 77058, U.S.A.
8. Lunar and Planetary Institute, 3600 Bay Area Boulevard, Houston, Texas 77058, U.S.A.
9. Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, California 91109, U.S.A
10. Chesapeake Energy Corporation, 6100 N. Western Avenue, Oklahoma City, Oklahoma 73118, U.S.A.
11. SETI Institute, Mountain View, California 94043, U.S.A.
12. American Museum of Natural History, New York, New York 10024, U.S.A.
13. Arizona State University, Tempe, Arizona 85281, U.S.A.