Apostrophe

Definition and stakes

W. J. Cocker,  Hand-book of punctuation (1878)

“ When parts of a quotation are omitted, use several stars to indicate the omission (* * * *) , or place double marks at the beginning and end of each detached part of the quotation.
[47]
THE APOSTROPHE. Rule I. Letters Omitted.—The apostrophe is used to indicate the omission of a letter or letters.
EXAMPLES.
“O Marcia, O my sister, still there’s hope!”—Addison.
“Thou knowest ’tis common; all, that live, must die,
Passing through nature to eternity.”—Shakespeare. REMARK.
The apostrophe is made like a comma, but is placed above the line.
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Source: Gutenberg

Thomas MacKellar,  The American Printer: A Manual of Typography

“ The apostrophe [’] is a comma cast on the upper edge of a type, and is used as a sign of contraction or abbreviation of words in poetry or familiar conversation, as We’re, o’er, don’t, &c. In poetry, it should not be employed where the [64] verb ends with e, as love, change, &c., but only in cases where the verb concludes with a consonant, as, reign, obtain, &c. It also marks the elision of a vowel at the beginning of words, as, ’scape, or of a syllable, as, ’prentice. ”
Source: Gutenberg

Alfred Ayres,  The Verbalist

“ It is recognized by the lexicographers, and I think is generally accounted, even by the careful, permissible in conversation, though incompatible with dignified diction.
Anxiety of Mind. See Equanimity of Mind.
Apostrophe. Turning from the person or persons to whom a discourse is addressed and appealing to some person or thing absent, constitutes what, in rhetoric, is called the apostrophe.
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Source: Gutenberg

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