II. The Third Folio Edition, 1765
This text of the Preface has no independent textual authority.
It is a page-for-page reprint of the second edition, and follows
that edition in all the readings in which it departs from the first
edition. The third edition introduces no new substantive readings.
It departs from the second edition text in only 12 places: five of
these are sporadic normalizations of spelling, three are slight
changes in punctuation, of which one is indifferent and two obscure
Johnson's syntax, and four are clear compositor's errors.[4] The third edition may therefore be
disregarded.