[Transcriber's note: Page numbers in this book are indicated by numbers enclosed in curly braces, e.g. {99}. They have been located where page breaks occurred in the original book, in accordance with Project Gutenberg's FAQ-V-99. This has been done only in the book's main chapters (I-XVII). For its Preface and its Index, page numbers have been placed only at the start of each of those two sections.]
