NAUTICAL MEASURE.
| 1 | nautical mile | 6082·66 feet. |
| 3 | miles | 1 league. |
| 20 | leagues | 1 degree. |
| 360 | degrees | the earth’s circumference. |
SQUARE MEASURE.
| 144 | s. inches | 1 | s. foot | |||||||
| 1296 | 9 | 1 | s. yard. | |||||||
| 39204 | 272¼ | 30¼ | 1 | s. pole. | ||||||
| 1568160 | 10890 | 1210 | 40 | 1 | rood. | |||||
| 6272640 | 43560 | 4840 | 160 | 4 | 1 acre. | |||||
CUBIC MEASURE (Measure of solidity).
| 1728 | cubic inches | 1 cubic foot. |
| 27 | cubic feet | 1 cubic yard. |
Note.—A cubic foot is equal to 2200 cylindrical inches, or 3300 spherical inches, or 6600 conical inches.
Timber.
40 feet of round, and 50 feet of hewn timber make 1 Ton; 16 cubic feet make 1 Foot of wood; 8 feet of wood make 1 Cord.