--Copyright notice provided as in the original—this e-text is public
domain in the country of publication.
--Silently corrected palpable typos; left non-standard spellings and
dialect unchanged.
--Only in the text versions, delimited italicized text in _underscores_
(the HTML version reproduces the font form of the printed book.)
--Only in the ASCII text version, delimited translated Greek letters in
{braces} (the UTF text and HTML versions preserve the Greek letters.)