Several palpable typos in the original were silently corrected,
after consulting other printed editions.
In the Distributed Proofreaders community, it is customary to
flag any aspect of the text that seems wrong, for the final editor
to double-check. It’s also customary for later proofreaders
to provide their own analysis. On this project, those proofers’
notes—as explanations of why the printed text was correct—so
often proved enlightening as to its meaning, that the postprocessor
retained them as footnotes. They are distinguished from the
original editor’s notes by a suffix “—ee”
(“electronic edition”).