graphic information from the text and placed it into standard form in the
notes.

I am grateful to many people and institutions who have helped me in
this effort. I particularly appreciate the generosity of Brigham Young
University for several research grants that have supported me in various
projects including this translation. Travis Tucker and Jim and Julie Siebach
were extremely helpful in the early stages of this work. I also appreciate
the help of many friendly and knowledgeable librarians without whose help
this project would have been absolutely impossible. Finally I must also
thank my wife, Barbara, who accompanied me with tireless devotion to
Washington, New York, San Francisco, London, Cambridge, Vienna, Budapest,
Prague and Berlin, and who, without complaint, found ways of amusing
herself while I read old books in dusty archives.

-viii-