The initials and finals give the name of a scholar of profound learning, and the work by which he is best known.

  1. JoeL
  2. OnE
  3. HoaX
  4. NaomI
  5. SaliC
  6. OthO
  7. NonagenariaN

Answer: Johnson, Lexicon.

ENIGMAS.

The Enigma hints the thing it would convey,

In terms quite various—opposite, some say,

The secret it reveals, but not so clear as day;

For in dark and mazy paths it ever loves to stray.