acknowledgment is made for permission
to reprint the following materials:

“Sailing to Byzantium,” by Robert Silverberg. Copyright © 1985 by Agberg, Ltd. First published in Isaac Asimov’s Science Fiction Magazine, February 1985. Reprinted by permission of the author.

“Surfacing,” by Walter Jon Williams. Copyright © 1988 by Davis Publications, Inc. First published in Isaac Asimov’s Science Fiction Magazine, April 1988. Reprinted by permission of the author.

“The Hemingway Hoax,” by Joe Haldeman. Copyright © 1990 by Joe Haldeman. First published in Isaac Asimov’s Science Fiction Magazine, April 1990. Reprinted by permission of the author.

“Mr. Boy,” by James Patrick Kelly. Copyright © 1990 by Davis Publications, Inc. First published in Isaac Asimov’s Science Fiction Magazine, June 1990. Reprinted by permission of the author.

“Beggars in Spain,” by Nancy Kress. Copyright © 1991 by Nancy Kress. First published as a chapbook by Axolotl Press. Reprinted by permission of the author.

“Griffin’s Egg,” by Michael Swanwick. Copyright © 1991 by Michael Swanwick. First published as a chapbook by Century Legend in 1991. Reprinted by permission of the author.

“Outnumbering the Dead,” by Frederik Pohl. Copyright © 1991 by Frederik Pohl. First published as a chapbook by Century Legend in 1991. Reprinted by permission of the author.

“Forgiveness Day,” by Ursula K. Le Guin. Copyright © 1994 by Ursula K. Le Guin. First published in Asimov’s Science Fiction, November 1994. Reprinted by permission of the author and the author’s agent, The Virgina Kidd Agency.

“The Cost to Be Wise,” by Maureen F. McHugh. Copyright © 1996 by Maureen F. McHugh. First published in Starlight 1 (Tor), edited by Patrick Nielsen Hayden. Reprinted by permission of the author.

“Oceanic,” by Greg Egan. Copyright © 1998 by Dell Magazines. First published in Asimov’s Science Fiction, August 1998. Reprinted by permission of the author.

“Tendeléo’s Story,” by Ian McDonald. Copyright © 2000 Ian McDonald. First published as a chapbook, Tendeléo’s Story (PS Publishing). Reprinted by permission of the author.

“New Light on the Drake Equation,” by Ian R. MacLeod. Copyright © 2001 by SCIFI.COM. First published electronically on SCI FICTION, May 23, 2001. Reprinted by permission of the author.

“Turquoise Days,” by Alastair Reynolds. From Diamond Dogs, Turquoise Days, by Alastair Reynolds, copyright © 2002 by Alastair Reynolds. Used by permission of Ace Books, an imprint of The Berkeley Publishing Group, a division of Penguin Group (USA) Inc.