The American practical navigator : being an epitome of navigation and nautical astronomy (1888)
Bowditch, Nathaniel, 1773-1838, United States. Navy Dept. Bureau of Navigation, Cooper, Philip Henry, 1844-1912 · Washington : Govt. Print. Off. · leaf 668
6 9 8 10.1 10.4 10.6 25 30 S. 9.6E. 9. 6 E. 9. 7 E, 9.8 E. ID. 2 E. ID. 4 E. 10 7E. II. oE. II.4E. II.7E. 30° s. 35 10. 6 10. 5 10. 6 10.8 IX. I II. 4 II 7 12. 2 12. 5 13.0 35 40 II.6 II. 5 II. 6 II.8 12.2 12.5 12 8 13-4 13.8 14-3 40 45 12.8 12.8 12.8 13.2 13.4 1 13.8 14 3 14.7 15-4 15.8 45 50 55°… … Page 622 TABLE 50. THE MAGNETIC VARIATION OF THE COMPASS. [In Latitude from 70° N. to 60° S. Longitude East of Greenwich. Lat. Lat. 90° 95° 100° 105° 110° 115° 120° 125° 130° 135° 70° N 15. oE. 13- 5 E. II. 5 E. 9.5E. 9.0E. 8.0E. 7.0E. 5.SE. 5.0E. 5.0 E. 70° N. 1 65 13-7 II.0 8-5 6-5 4.0 2.0 1.0…
Navigation · Nautical astronomy
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