Illustration captions in {brackets} have been added by the transcriber
for reader convenience.
The position of some illustrations has been changed to improve
readability.
Minor typographical errors have been corrected without note. These
minor errors include extra or missing commas, periods, and quotation
marks (" and ').
Significant typographical errors have been corrected and are marked with
dotted underlines. Place your mouse over the highlighted word and the original text will
appear. A full list of these same corrections
is also available in the [Transcriber's Corrections] section at the end of
the book.