Punctuation, hyphenation, and spelling were made consistent when a predominant preference was found in this book; otherwise they were not changed.

Simple typographical errors were corrected; occasional unbalanced quotation marks retained.

Ambiguous hyphens at the ends of lines were retained.

Page 37: Paragraph beginning “In spite, however, of all positive evidence to the contrary” contains an unbalanced quotation mark.

Page 56: Removed an unmatched single quotation mark just before “the” in “Imagine Juliet as the party, loved”.

Page 63: Paragraph beginning “The inaccurately described bi-literal cipher” contains an unbalanced quotation mark.

Page 69: Closing quotation mark added at the end of the two-line verse beginning with “So long as men can breathe, or eyes”.

Page 99: Paragraph beginning “Even at the risk of wearying my readers” contains an unbalanced quotation mark near the end of the paragraph.

Page 119: Paragraph beginning “Spedding, himself a genius” ends with an unbalanced quotation mark.