The printed book included marginal glosses and footnotes; these have been combined into one series of footnotes. Duplicate headings have been removed from this eBook.

The following apparent errors have been corrected:

• p. viii "223" changed to "221"
• p. 172 "I sall" changed to "“I sall"
• p. 178 (note 1054) The text included a note anchor, but no corresponding gloss. The latter has been added.

Glosses with missing full stops have been corrected.

Variant spelling and inconsistent punctuation have otherwise been kept as printed.