“But as this passion for admiration, when it works according to reason,
improves the beautiful part of our species in every thing that is
laudable; so nothing is more destructive to them, when it is governed
by vanity and folly.” Addison, ibid.
Here the whole Sentence is divided into two parts by the Semicolon; each
of which parts are Compounded Members, divided into their Simple Members
by Commas.
A member of a Sentence, whether Simple or Compounded, which of itself
would make a compleat Sentence, and so requires a greater pause than a
Semicolon, yet is followed by an additional part making a more full and
perfect Sense, may be distinguished by a Colon.