Italic text in the original is delimited by _underscores_. Bold and
spaced-text in the original is delimited by =equal signs=. A caret [^]
has been used to indicate that the following number is an exponent—i.e.
raised above the base line.
1. Copyright notice was provided as in the original printed text—this
e-text is public domain in the country of publication.
2. Obvious typographical errors were silently corrected; non-standard
spellings and dialect were retained.
3. On page 23, an “i” was changed to an “I” where the meaning was first
person singular, nominative case.