Bruce's Standard.—Geometrical Progression.
The following standard for the bodies of type originated by George Bruce, in the year 1822, has been found very satisfactory. It disturbs but trivially the sizes which are most used, while it fixes the body of every size in exact and correct proportion with the other sizes. This standard is based on the system of geometrical progression, doubling at every seventh size in any part of the series. Each size is, therefore, 12·2462+ per cent. larger than the size immediately above it, as shown in the following columns:
(a) | Size in decimals of a linear inch. |
(b) | Body larger than that preceding it, in decimals of a linear inch. |
(c) | Ems and decimals of an em in a linear foot. |
(d) | Ems and decimals of an em in a square foot. |
|
(a) |
(b)* |
(c) |
(d) |
Diamond |
·0595+ |
|
201·587+ |
40,637·46+ |
Pearl |
·0668+ |
·0072+ |
179·593+ |
82,253·97+ |
Agate |
·075 |
·0081 |
160· |
25,600· |
Nonpareil |
·0841+ |
·0091 |
142·543+ |
20,318·73+ |
Minion |
·0994+ |
·0103 |
126·992+ |
16,126·98+ |
Brevier |
·1060+ |
·0115 |
113·137+ |
12,800· |
Bourgeois |
·1190+ |
·0129 |
100·793+ |
10,159·36+ |
Long Primer |
·1336+ |
·0145 |
89·796+ |
8,063·49+ |
Small Pica |
·15 |
·0163 |
80· |
6,400· |
Pica |
·1683+ |
·0183 |
71·271+ |
5,079·68+ |
English |
·1889+ |
·0206 |
63·496+ |
4,031·74+ |
Columbian |
·2121+ |
·0231 |
56·568+ |
3,200· |
Great Primer |
·2381+ |
·0259 |
50·396+ |
2,539·84+ |
Paragon |
·2672+ |
·0291 |
44·898+ |
2,015·87+ |
Double Small Pica |
·3 |
·0327 |
40· |
1,600· |
Double Pica |
·3367+ |
·0367 |
35·635+ |
1,269·92+ |
Double English |
·3779+ |
·0412 |
31·748+ |
1,007·93+ |
Double Columbian |
·4242+ |
·0462 |
28·284+ |
800· |
Double Great Primer |
·4762+ |
·0519 |
25·198+ |
634·96+ |
Double Paragon |
|
·5345+ |
·0583 |
22·449+ |
503·96+ |
Meridian |
·6 |
·0654 |
20· |
400· |
Canon |
·6734+ |
·0734 |
17·817+ |
317·48+ |