Page:The practice of typography; correct composition; a treatise on spelling, abbreviations, the compounding and division of words, the proper use of figures and nummerals by De Vinne, Theodore Low, 1828-1914.djvu/190

 by the founders for this purpose are more satisfactory, and are most frequently used.

In mathematical work, however, the old signs may be used instead of superior figures to distinguish note references from powers of numbers, letters, etc.

When notes are few and short it is customary to set them as regular paragraphs to the full width of the measure, with the same indention as that of paragraphs of text. Wherever it is practicable, the reference-mark should be separated by a space from the first letter of the note. Notes are always unsightly when they consist mainly of abbreviated citations of books, which in many cases overrun one or two words on the second line, thereby making needless and wasteful gaps of white space. (See page 58.) The old method of closing the gaps by allowing note 2 to follow note 1, and making all the notes one solid paragraph (as appears in the subnotes on page 172 of this book), is no longer allowed. As a rule, the author wants a separate paragraph or line for each note, but separate paragraphs may make unsightly blanks when their last lines have but a few letters.

When there is but one note to the page, and that