



Produced by KD Weeks, Juliet Sutherland and the Online
Distributed Proofreading Team at http://www.pgdp.net






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                          Transcriber’s Note:

This version of the text cannot represent certain typographical effects.
Italics are delimited with the ‘_’ character as _italic_. The topic
headings were printed in =boldface= type, and are delimited with ‘_’.

The original volume promised many illustrations. However, the edition
used here had none of them. The List of Illustrations is retained;
however, the pages indicated are not valid.

The text was printed with two columns per page, which could not be
reproduced in this format.

Minor errors, attributable to the printer, have been corrected. Please
see the transcriber’s note at the end of this text for details regarding
the handling of any textual issues encountered during its preparation.

The following less-common characters are found in this book: ă (a with
breve), ā (a with macron), ĕ (e with breve), ē (e with macron), ĭ (i
with breve), ī (i with