The four footnotes have been moved to the end of the book. A few words were judged to be printer errors and were changed. These include two occurrences of horse-power in the unhyphenated form, the spelling of Tabuteau as Tabuteaw on p. 162, and the spelling of hÉlicoptÈre as helicoptÉrÉ on p.208. On a few of the figure captions, missing accents were added to some French names.