1. When several letters in a word are not in their proper order, either draw a line through the word and rewrite it in the margin, or draw a line under or through the letters, and write them in their proper order.
2. When the order of several words is to be changed, indicate the proper order by placing 1, 2, 3, 4, &c., over the words, draw a straight line under each, and write tr. in the margin.
XII. Crooked Words.—When the letters of a word are displaced, draw a line above and below the word, and repeat the lines in the margin; as, 28. The same marks are used to call attention to a crooked line.
XIII. Projecting Leads.—When a lead projects so as to leave an impression on the proof, a sloping line should be drawn through it, and the sign [symbol] or [symbol] placed in the margin; as, 22.
XIV. Diphthongs.—When æ and œ should be printed as diphthongs, a line should be drawn through them, and the letters forming the diphthong written in the margin thus, æ̑, œ̑.
XV. Mark of Attention.—The sign + is sometimes used to call the attention of the printer to some defect in a word or line.
GENERAL REMARK.
It is the custom with many proof-readers to draw a line from the mistake in the proof to the correction in the margin. This should always be done when the mistakes are numerous, or the lines crowded together.