This section is from the book "Scientific American Reference Book. A Manual for the Office, Household and Shop", by Albert A. Hopkins, A. Russell Bond. Also available from Amazon: Scientific American Reference Book.
3 | barleycorns, or............ | 1 inch (in.) |
12 | lines, or.............. | |
72 | points, or............. | |
1,000 | mils (mi.)............... | |
3 | inches............. | 1 palm |
4 | inches........... | 1 hand |
9 | inches................ | 1 span |
12 | inches............. | 1 foot (ft.) |
18 | inches............. | 1 cubit |
3 | feet............ | 1 yard (yd.) |
2½ | feet............. | 1 military pace |
5 | feet................. | 1 geometrical pace |
2 | yards.............. | 1 fathom |
5½ | yards............... | 1 rod, pole, or perch |
66 | feet, or........... | 1 Gunter 's chain |
4 | rods.................... | |
40 | poles, or.......... | 1 furlong (fur.) |
220 | yards................. | |
8 | furlongs, or......... | 1 mile |
1,760 | yards, or............... | |
5,280 | feet................ | |
3 | miles................... | 1 league |
The hand is used to measure horses' height. The military pace is the length of the ordinary step of a man. One thousand geometrical paces were reckoned to a mile.
 
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