These are our responsibility and we regret there are some. Look at it positively: here's your chance to win a free beer.
First Edition: No beer here now. The changes to be made are here.
Second Edition: The changes (which were corrected in a print June 2008) are here.
Third Edition: Bierkeller closed. The changes to be made are here.
Fourth Edition: OK, 600 pages of potential beer winning. We are proofreading it now.
School of Electronics and Computer Science, University of Southampton, Highfield, Southampton SO17 1BJ, UK