Decimals.—In columns of figures containing decimals omit the point and ciphers where no decimal occurs. This rule does not apply to money columns consisting of both dollars and cents, where the points and ciphers will be used. Always align the decimal points.
Dollar mark.—Repeat dollar mark under rules in continuous tables; also in leader work where center heads occur indicating a separate or independent statement. But in statements where amounts are added to make a general aggregate do not repeat the dollar mark, even where center heads occur.
Parallel dashes.—Use parallel dashes in figure columns in all cases where necessary to cut off from figures following. This rule will apply also to leader work.
Tables in rules.—In tables inclosed in rules, where the first column consists of figures, do not use leaders. [This rule will not apply to date columns or to reading columns clearly requiring leaders.] Bear off matter one em from side rules.
Full point in leader lines.—Use full point between abbreviation and reference mark in leader lines, as Boston, Mass.† ...
Blanks for center heads.—Use full blank line above and below all center heads in stubs or reading columns, excepting where leaders run back far enough to clear the head, in which case use only a line of en quads below.
Plus and minus marks.—Plus and minus marks in figure columns must be aligned when occurring at left of figures.
Dates and figures in reading columns.—Do not range dates or figures in first or reading columns unless figures are added up to make a total. This rule will apply also to leader work.
En-quadded tables.—Use en quads in runovers [copy preparers will give instructions when change is desired]; scabbard will not be allowed; all box heads solid.