William Livingston Klein, Why We Punctuate; or, Reason Versus Rule in the Use of Marks
“ In No. 20-1 we use a semicolon expressly to show that what immediately follows the mark looks forward for its connection; and, it seems to us, the semicolon in No. 21 cannot fail to give to any reader, with or without much knowledge of marks, notice that a complete new group, and not an additional part of the preceding group, is to follow the semicolon. If the reader is looking forward for a new group (a clause) , the ending of the sentence gives him a surprise, and compels him to read over the entire sentence to make the proper grouping. ”
