¹ I was invited to contribute, but I chose not to because I objected to the high prices Edward Elgar often charges for its books. I was particularly concerned by the following sentences in John Davis's letter of February 19, 1993 inviting me to contribute: ‘Thanks to the generosity of the publisher, each contributor will receive a free copy of the HANDBOOK. It would be appreciated if each contributor requested his or her college or university library to order at least one copy of the book’. At a list price of $215, my qualms about Elgar's generosity persist.

² It would be especially useful if the entries could be posted on a web site, and indeed if Davis, Hands, and Mäki were to have embarked on this project at the beginning of 1999 rather than the beginning of 1993, they should have devoted their energies to devising a web site with links to existing resources as well as original contributions. I would also like to thank John Davis and Wade Hands for their comments on the first draft of this review.