1. * Dibner Institute for the History of Science and Technology, and Program in Science, Technology, and Society, Massachusetts Institute of Technology, 38 Memorial Drive, Cambridge, MA 02139 (cpyeang@mit.edu). I thank Jed Buchwald, Evelyn Hammond, Hermann Haus, David Kaiser, Rob Martello, David Mindell, George Smith for reading and commenting on various versions of this draft. I am also grateful for the help of the following people in accessing primary sources:
2. Kun-Hau Ding, Brendan Foley, Wilhelm Ful and the staff of Deutsches Museum Archives (Munich), the United States National Archives (Washington, D.C.), Institute of Electrical Engineers Archives (London), MIT Institute Archives (Cambridge, MA), Harvard University Archives (Cambridge, MA), and the library of the Air Force Research Laboratory (Hanscom, MA). A part of the content of this paper was presented at the Joint Atlantic Seminar in the History of Physical Sciences at the Chemical Heritage Foundation, Philadelphia, on September 28-29, 2001.
3. The following abbreviations are used: AP, Annalen der Physik; DM, Deutches Museum Archiv, Munich; (http://www.lrz-muenchen.de/\~Sommerfeld/ for the archives Sommerfeld documents); Obit, Royal Society of London, Obituary notices of fellows; PRS, Royal Society of London, Proceedings.
4. 1 Orrien E. Dunlap, Marconi, the man and his wireless (New York, 1937), 87-102, and Degna Marconi, My father Marconi (New York, 1962), 111-120.
5. HSPS, Volume 33, Part 2, pages 369-404. ISSN 0890-9997. c2003 by The Regents of the University of California. All rights reserved. Send requests for permission to reprint to Rights and Permissions, University of California Press, 2000 Center St., Ste. 303, Berkeley, CA 94704-1223.