0 is used after figures to indicate feet. ' is used after figures to indicate inches.

"is used after figures to indicate lines, or twelfths of an inch. ' over syllables indicates the accent, and the short English sound of the vowel, over syllables indicates the accent, and the long, broad, open or close English sound of the vowel.

In the Metric System.

The metre = 39.37 inches, or 3 feet 3.37 inches."

The decimetre = 3.94 inches.

The centimetre = § of an inch, or 4! lines. f very nearly

The millimetre = r* of an inch, or \ a line.

2 millimeters = 1 line. J