For this E-Text version of the book, the footnotes have been
consolidated at the end of each section of the introduction,
and at the end of each poem.
Numbering of the footnotes has been changed, and each footnote
is given a unique identity in the form <XX.YY>, where XX is
a poem or a section of the introduction, and YY is the number
of the note within that poem or section.
Some footnote markers are missing. I have inserted markers where
I believe they should go. All such markers are identified by
double brackets. e.g. <<9.2>>
There were 5 footnotes in an "Additional Notes" section of the
book, and one footnote in the Table of Contents. These footnotes
have been identified as <<AN.1>> to <<AN.5>> and <<TOC.1>>. They
have been moved to the end of the appropriate sections of the
E-Text, and footnote markers, identified by double angle brackets,
i.e. << >> have been added. The original locations of these
footnotes in the body text, however, are also indicated for
information.