ng-font
space making the type crooked.

17. [Illustration] Line to be indented one _em_ of its own body.

When letters or words are set double or are required to be taken out a
line is drawn through the superfluous word or letter and the mark No.
1, called _dele_, placed opposite on the margin. (_Dele_ is Latin for
_take out_.)

A turned letter is noted by drawing a line through it and writing the
mark No. 2 on the margin.

If letters or words require to be altered to make them more
conspicuous a parallel line or lines must be made underneath the word
or letter--namely, for capitals, _three lines_; for small capitals,
_two lines_; and for italic, _one line_; and on the margin opposite
the line where the alteration occurs the sign _caps._, _small caps._,
or _ital._ must be written.

Where a letter of a different font is improperly introduced into the
page it is noted by drawing a line through it and writing _w. f._
(_wrong font_) on the margin.

Where a word has been left out or is to be added a _caret_ must be
made in the place where it should come in and the word written on the
margin. A caret is made thus: ^

Where letters stand crooked they are noted by a line, but where a page
hangs lines are drawn across the entire part affected.

Where a faulty letter appears it is denoted by making a cross under it
and placing a similar mark on the margin.

Where several words are left out or where new matter is to be added
the added matter is written wherever convenient, and a line is drawn
from the place of omission to the written words.

In making a correction in a proof always mark the wrong letter or word
through and insert the alteration in the margin, not in the middle of
the printed matter, because it is liable to be overlooked if there is
no marginal reference to the correction. To keep the different
corrections distinct finish each off with a stroke, thus /; and to
make the alterations more clear or less crowded mark those relating
to the left-hand portion on the left margin and those relating to the
right-hand portion on the right margin.

* * * * *

The hints given here are intended for the general public and not for
the printer, and to the student of these lessons let us say that the
first essential of good proof-reading is clearness. Be very sure that
the printer will understand the changes which you desire him to make.
Quite often it is an advantage if you wish a p