E-text prepared by Chris Curnow, Suzanne Shell,
and the Project Gutenberg Online Distributed Proofreading Team
(http://www.pgdp.net/c/)
Transcriber's Notes:
Some minor changes have been made to correct typographical errors and inconsistencies.
The original book has no table of contents. In this version I have added one to allow the reader to jump to a particular chapter.
