The editors gratefully acknowledge the service of the following persons who have been consulted concerning the preparation of volumes two hundred seven through two hundred eleven of the Pacific Journal of Mathematics.

Ian Agol, J. Altobelli, Michael Anshelevich, Luchezar Avramov, Yuri Bahturin, L. B. Beasley, I. Belegradek, Bruce Berndt, M.-F. Bidaut-Veron, Deitmar Bisch, Winfried Bruns, D. Calegari, S. Cappell, David Catlin, J. Y. Chen, Harvey Cohn, David Cox, Vinay Deodhar, Karl Dilcher, D. E. Dobbs, Igor Dolgachev, Ricardo Earp, Yurij Egorov, M. Eudave-Munoz, Alberto Facchini, R. Fintushel, Paul Fong, J. E. Jornaess, Michael Fried, Ryan Skip Garibaldi, R. Ghrist, Kenneth Goodearl, Robert Greene, Robert Guralnick, James Hafner, Paul Hagelstein, Qing Han, Dieter Happel, E. Hironaka, Herve Jacquet, Zhiren Jin, Kirti Joshi, E. Keppelmann, Mark Kidwell, I. Kofman, M. Lackenby, Zeph Landau, Mark Lawson, J. Levine, Jian-Shu Li, Fei-tsen Liang, C. Livingston, J. Luecke, Gennady Lyubeznik, John McCuan, J. McKernan, K. Miyake, Richard Montgomery, G. Nagy, Alexandru Nica, Hiroyuki Ochiai, Robert Osserman, Mariarosaria Padula, Don Passman, F. Paulin, Mark Pollicott, M. Putinar, E. Rakhmanov, Jeffrey Rauch, J. Rogawski, Xiaochun Rong, J. C. Rosales, F. Rouviere, Zhong-Jin Ruan, D. Ruberman, K. Rybakowski, H. Salzmann, Don Sarason, Omri Sarig, Peter Sarnak, Jean-Luc Sauvageot, Kristian Seip, Z. Shen, Alexandra Shlapentokh, Sibony, Robert Silhol, Gieri Simonett, Kate Stevenson, Stanislaw Szarek, S. Tabachnikov, S. Thangavelu, A. Thompson, Jean-Pierre Tignol, Serguei Treil, E. P. van den Ban, T. I. Vogel, Dan Voiculescu, S. A. Voronov, L. C. Washington, Jeff Weeks and Henry Wente.