Page:Philosophical Transactions - Volume 050, part 1.djvu/381

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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.
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