< Page:Philosophical Transactions - Volume 050, part 1.djvu
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A TABLE, exhibiting the different Variations of the Magnetic-Needle in the more frequented Oceans, from the Year 1700 to the Year 1756.
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| Latitude. | Longitude, From London. | VARIATION. | |||||
| Anno 1700. | Anno 1710. | Anno 1720. | Anno 1730. | Anno 1744. | Anno 1756. | ||
| Degrees. | Degrees. | Degrees. | Degrees. | Degrees. | Degrees. | Degrees. | Degrees. |
| 0 | 0 | 4½ W | 10¼ W | 14¼ W | 15¼ W | ||
| 0 | 5W | 2¾W | 8½W | 12W | 13½W | ||
| 0 | 10W | 1½W | 3½W | 5½W | 7 W | 10 W | 11 W |
| 0 | 15 W | 0½W | 2W | 3½W | 5W | 7½W | 9W |
| 0 | 20W | 0¼E | 0½W | 1¾W | 3W | 5¼W | 6½W |
| 0 | 25W | 1½E | 0½E | 0½W | 1½W | 3W | 4W |
| 0 | 30W | 2½E | 2 E | 1½E | 1 E | 0¾W | 0½W |
| 0 | 35W | 3¼E | 3 E | 2¾E | 2½E | 1½E | 1½E |
| 0 | 40W | 4¼E | 4¼E | 4 E | 3¼E | 3½W | 3½E |
| 0 | 45W | 5½E | 5½E | 5¼E | 5 E | 4¾E | 5 E |
| 0 | 50W | 6¾E | 5¾E | 6 E | 6½E | ||
| 0 | 5E | 6 W | 12½W | 15¼W | 16½W | ||
| 0 | 10E | 7¾W | 14¼W | 17W | 17½W | ||
| 0 | 40E | 16¼W | 17W | 17¼W | 17W | 16½W | 16¾W |
| 0 | 45E | 17¾W | 17¼W | 16¾W | 16¼W | 15¾W | 14½W |
| 0 | 50E | 17½ | 16¾W | 16 W | 15 W | 14 W | 11¾W |
| 0 | 60E | 15¼W | 13¾W | 12½W | 11 W | 9 W | 6 W |
| 0 | 65E | 13½ | 11¼W | 10 W | 8¼W | 6½W | 4½W |
| 0 | 70E | 11½W | 9¾W | 7¾W | 6W | 4W | 3¼W |
| 0 | 75W | 9¾W | 7¼W | 5¾W | 4WW | 1¾W | 1W |
| 0 | 80E | 7¾W | 6W | 4¼W | 3W | 0¼W | 0¼E |
| 0 | 85E | 5½W | 4W | 2½W | 1½W | 0¼E | 1¼E |
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