In the .txt version, surrounding characters have been used to indicate
_Italics_, +Mixed-Case Smallcaps+, and (in illustration captions)
+ALL SMALLCAPS+. Formatting for superscript and underscore have been
omitted.
Illustrations have been moved from within to between paragraphs as
needed.
Minor typographical and spelling errors have been corrected.
High/low quotes and guillemets have been changed to quotation marks.
Artists’ names have been put in +Smallcaps+ as needed.
Other inconsistencies (formatting, capitalization and hyphenation)
have been retained.