Brinton Ahlin, Panteleymon Anastasakis, Radhika Banerjee, Travis Berger, Alex Boden, Yuxi Chen, Mai Duong, Jon Franklin, Aarathi Garimella, Magnus Sveinn Helgason, Marcus Holmlund, Jingyi Huang, Anniki Laine, Sasha Nichols-Geerdes, Joseph Ogega, Eugene Pooley, Lingfeng Sun, Minqian Wang, Qian Wang, Yuanshun Yao, Lingfeng Ye, Muqing Yue, Yilin Zhai, Yiqun Zhang, Sylvia Zheng, Ying Zhu, and Jialu Zhong provided invaluable research assistance. George Green helped greatly by suggesting some of his best undergraduate economic history students as research assistants.
Special thanks are due to Anna Martin for generously sharing not only early drafts of her biography of Dionysius Lardner, but also her source materials.
The Computer Science Department at the University College London provided a visiting professorship in the fall of 2008 that greatly helped in the work on this project. Technical support from the Digital Technology Center and the Minnesota Supercomputing Institute at the University of Minnesota was extremely helpful. Last but not least, the financial support from an ADC Chair at the Digital Technology Center at the University of Minnesota, as well as the semester research leave in the fall of 2008 and the sabbaticals during the 2009--2010 and 2016--2017 academic years are gratefully acknowledged.
In addition, I thank Muayyad Al-Chalabi, Ron Alquist, Guy Almes, Ross Anderson, John Barney, Neil Barton, Donald Beadles, Bonnie Bennett, Dan Bogart, Richard Bonney, Alain Bourdeau de Fontenay, Grahame Boyes, Philip Brassett, Peter Brown, Rob Brown, Janet Browne, Dave Burstein, Frank Byrd, Frances Cairncross, Gareth Campbell, Robert Cannon, Steven Cherry, Judi Clark, Kate Colquhoun, Frank Coluccio, Douglas Comer, Steve Crandall, Janos Csirik, Plato Demos, Tim Denton, Rolf De Vegt, Andrew Dow, Stephen Elliott, Dennis Fazio, Mordechai Feingold, Matthew Forrester, Amy Friedlander, Michael Friendly, Joshua Gans, Martin Geddes, Patrick Gilmore, Lars Godell, Bonnie Goldsborough, Fred Goldstein, Frode Greisen, David Alan Grier, Goulven Guilcher, John Greatrex, Candace Guite, Carl Haacke, Joe Hamelin, Ellen Harris, Jo Hays, Jeff Hecht, Cormac Herley, Chris Hinde, Tim Horan, Yectli Huerta, Ralph Hyre, Charles Jackson, Christopher Jakes, Richard John, Brewster Kahle, David Kahn, Steve Kamman, Aman Kapoor, Frank Kelly, Kalevi Kilkki, Dorian Kim, Jon Kleinberg, Jan Klovland, Todd Koffman, Eric Krapf, John Lee, Wolter Lemstra, David Levinson, Wendy Lougee, Bryan Lyles, Sean McCartney, Bruce McCullough, Om Malik, Scott Marcus, Stephen Mason, Bob Metcalfe, George Michaelson, Ranald Michie, Min, Tom Misa, Jay Muthuswamy, Larry Neal, Scott Nelson, Peter Neumann, Michael Odlyzko, Paul Odlyzko, Andy Oram, Jorge Ortiz, Michael Palmer, Hui Pan, Robert Patten, Arno Penzias, Carla Rahn Phillips, Paul Polishuk, Alex Preda, Francis Reid, Susan E. Reid, Alex Roland, Hendrik Rood, Richard Rumelt, Tom Ruwart, John Ryan, Gil Sadka, Christian Sandvig, Angela Sasse, Simon Schaffer, Dave Schaeffer, Steven Schear, Henning Schulzrinne, Matthew Searle, Soumya Sen, Peter Sevcik, Simon Sleight, Tom Soja, Arthur Solomon, Mark Stahlman, Tom Stluka, Tim Stronge, Bart Stuck, Arielle Sumits, Aaron Swartz, Richard Sylla, Tony Tauber, Roger Taylor, Joel Tropp, Andrey Ukhov, Hal Varian, Joost van der Vleuten, Philip Webre, Sara Wedeman, John van Wyhe, Ellis Weinberger, Bill Woodcock, Jeremy Wormell, Jeff Young, and Joe Zink for providing helpful information, comments, and suggestions.
Great thanks are due to the many institutions whose collections were
consulted, in particular
Baker Library of the Harvard Business School,
Bank of England Archive,
British Public Records Office,
Cambridge Central Library,
Cheshire Record Office,
City University Library,
Coutts & Co Archives,
Down House Archives of English Heritage,
Duke University's Rubenstein Rare Book & Manuscript Library,
C. Hoare & Co.,
King's College (University of Cambridge),
Leicestershire Records Office,
Library of Congress,
London Metropolitan Archives.
London School of Economics,
National Library of Scotland,
New York Public Library,
Royal Institution of Great Britain,
Science Museum (of London) Library,
Times Newspapers Ltd Archive,
University College London,
University of California at Santa Barbara,
University of Cambridge,
University of Chicago,
University of Guelph,
University of London,
University of Michigan,
University of Pittsburgh,
University of St Andrews,
and Yale University's Beinecke Rare Book and Manuscript Library.
The Dell'Oro Group, Optical Society of America, and RHK made some of their
materials available, and Thomson Gale kindly provided some
early guest access to
its online version of The Times.
Special thanks are due to the University of Minnesota Library,
especially its interlibrary loan staff.