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310
MAGNETIC OBSERVATIONS.
[Chap. X.
1841
Observations of the Dip and Variation, made on board H.M.S. Erebus, between the 18th of March and 6th of April, 1841.
Date. | Position. | Dip S. | Variation. | Remarks. | |
Lat. S. | Long. E. | ||||
°′ | °′ | °′ | °′ | ||
Mar. 18 | 63.52 | 151.50 | 84.06 | — 20.15 | The sign — denotes easterly and + denotes westerly variation. |
19 | 64.16 | 149.15 | 84.20 | — 16.40 | |
20 | 64.56 | 147.14 | 85.03 | — | |
65.15 | 144.53 | 85.05 | — | ||
65.04 | 142.46 | — | — 12.37 | ||
21 | 64.26 | 140.46 | 84.55 | — 6.57 | |
22 | 63.20 | 139.43 | 84.05 | — 5.58 | |
62.42 | 138.20 | 84.00 | — 4.05 | ||
23 | 62.20 | 136.26 | 83.45 | — 1.12 | |
62.06 | 136.07 | 83.30 | — 0.27 | ||
Cross line of no variation. | |||||
25 | 60.23 | 131.38 | 83.10 | + 8.09 | |
26 | 59.10 | 130.00 | 82.36 | + 8.32 | |
28 | 57.20 | 127.49 | 81.45 | + 8.47 | |
29 | 56.16 | 130.46 | 81.00 | + 5.46 | |
30 | 55.10 | 131.30 | 80.20 | + 1.34 | |
55.07 | 132.40 | 80.00 | + 1.05 | ||
Re-cross line of no variation. | |||||
31 | 54.05 | 134.30 | 79.30 | — 1.44 | |
Apr. 1 | 52.56 | 135.24 | 78.50 | — 1.03 | Anomalous observation. |
2 | 51.12 | 136.55 | 77.40 | — 4.39 | |
5 | 44.52 | 143.38 | 73.20 | — 6.00 | |
6 | 44.06 | 145.42 | 71.40 | — 10.06 |