1. * Institut fur Geschichte der Naturwissenschaften, Universitat Munchen, and Forschungsinstitut des Deutschen Museums, Postfach, D-80306 Munich; S.Wolff@lrz.uni-muenchen.de.
2. I thank Bernhard v. Brocke, Michael Eckert, Menso Folkerts, Karl Marker, Arne Schirrmacher, Irene Taubitz, Jurgen Teichmann, and Helmuth Trischler for help in preparing this article and J.L. Heilbron for suggested improvements.
3. The following abbreviations are used: DMM, Handschriften Deutsches Museum, Munich; SPKB, Staatsbibliothek Preussischer Kulturbesitz, Berlin.
4. 1 Hermann Kellermann, Der Krieg der Geister (Dresden, 1915).
5. HSPS, Volume 33, Part 2, pages 337-368. 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.