Note to This Electronic Edition
In the print edition of this book, footnote numbers began with 1 on each page, and the footnotes appeared at the bottom of each page. In this electronic edition, the footnotes have been re-numbered beginning with 1 for each paragraph, and they appear directly below the paragraph that refers to them. A very few ascertainable errors have been caught and corrected. All else is intended to correspond as closely as possible to the contents of the print edition.