APPENDIX I.
NUMERALS.
Numbers expressed by letters; either Roman or italic caps or lower case are used, thus—Vol. I. chap. xvii. The numerals are—
| I | i | 1 |
| V | v | 5 |
| X | x | 10 |
| L | l | 50 |
| C | c | 100 |
| D | d | 500 |
| M | m | 1000 |
The manner of expressing numbers by numerals, is by either taking from a higher or adding to a lower numeral thus—
| IV | iv | 4 |
| VI | vi | 6 |
| IX | ix | 9 |
| XI | xi | 11 |
| XIV | xiv | 14 |
| XVI | xvi | 16 |
| XX | xx | 20 |
| XL | xl | 40 |
| LX | lx | 60 |
| XC | xc | 90 |
| CX | cx | 110 |
| CD | cd | 400 |
| DC | dc | 600 |
| CM | cm | 900 |
| MC | mc | 1100 |
| MD | md | 1500 |
LEADS REQUIRED TO EQUAL A LINE OF ANY GIVEN BODY OF TYPE.