# A New and Exact Table, Collected from Several Observations, Taken in Four Voyages to Hudson's Bay in North America from London: Shewing the Variation of the Magnetical Needle, or Sea Compass, in the Path-Way to the Said Bay, According to the Several Latitudes and Longitudes, from the Year 1721, to 1725 By Mr. Christopher Middleton

**Author(s):** Christopher Middleton  
**Year:** 1726  
**Journal:** Philosophical Transactions (1683-1775)  
**Volume:** 34  
**Pages:** 5 pages  
**Identifier:** jstor-103448  
**JSTOR URL:** <https://www.jstor.org/stable/103448>  

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V. A New and Exact TABLE, Collected from several Observations, taken in four Voyages to Hudson's Bay in North America, from London: Shewing the Variation of the Magnetical Needle, or Sea Compass, in the Path-way to the said Bay, according to the several Latitudes and Longitudes, from the Year 1721, to 1725. By Mr. Christopher Middleton.

| Lat. | Long. | Vari. | Lat. | Long. | Vari. |
|------|-------|-------|------|-------|-------|
| D. M. | D. M. | D. M. | D. M. | D. M. | D. M. |
| 50° 00' | 12° 00' | 14° 00' | 50° 00' | 18° 45' | 17° 00' |
| 51° 00' | 12° 00' | 14° 15' | 51° 00' | 18° 45' | 17° 15' |
| 52° 00' | 12° 00' | 14° 30' | 52° 00' | 18° 45' | 17° 30' |
| 53° 00' | 12° 00' | 14° 45' | 53° 00' | 18° 45' | 17° 45' |
| 54° 00' | 12° 00' | 15° 00' | 54° 00' | 18° 45' | 18° 00' |
| 55° 00' | 12° 00' | 15° 15' | 55° 00' | 18° 45' | 18° 15' |
| 56° 00' | 12° 00' | 15° 30' | 56° 00' | 18° 45' | 18° 30' |
| 57° 00' | 12° 00' | 15° 45' | 57° 00' | 18° 45' | 18° 45' |
| 58° 00' | 12° 00' | 16° 00' | 58° 00' | 18° 45' | 19° 00' |
| 59° 00' | 12° 00' | 16° 15' | 59° 00' | 18° 45' | 19° 15' |
| 50° 00' | 14° 15' | 15° 00' | 50° 00' | 21° 00' | 18° 00' |
| 51° 00' | 14° 15' | 15° 15' | 51° 00' | 21° 00' | 18° 15' |
| 52° 00' | 14° 15' | 15° 30' | 52° 00' | 21° 00' | 18° 30' |
| 53° 00' | 14° 15' | 15° 45' | 53° 00' | 21° 00' | 18° 45' |
| 54° 00' | 14° 15' | 16° 00' | 54° 00' | 21° 00' | 19° 00' |
| 55° 00' | 14° 15' | 16° 15' | 55° 00' | 21° 00' | 19° 15' |
| 56° 00' | 14° 15' | 16° 30' | 56° 00' | 21° 00' | 19° 30' |
| 57° 00' | 14° 15' | 16° 45' | 57° 00' | 21° 00' | 19° 45' |
| 58° 00' | 14° 15' | 17° 00' | 58° 00' | 21° 00' | 20° 00' |
| 59° 00' | 14° 15' | 17° 15' | 59° 00' | 21° 00' | 20° 15' |
| 50° 00' | 16° 30' | 16° 00' | 50° 00' | 23° 15' | 19° 00' |
| 51° 00' | 16° 30' | 16° 15' | 51° 00' | 23° 15' | 19° 15' |
| 52° 00' | 16° 30' | 16° 30' | 52° 00' | 23° 15' | 19° 30' |
| 53° 00' | 16° 30' | 16° 45' | 53° 00' | 23° 15' | 19° 45' |
| 54° 00' | 16° 30' | 17° 00' | 54° 00' | 23° 15' | 20° 00' |
| 55° 00' | 16° 30' | 17° 15' | 55° 00' | 23° 15' | 20° 15' |
| 56° 00' | 16° 30' | 17° 30' | 56° 00' | 23° 15' | 20° 30' |
| 57° 00' | 16° 30' | 17° 45' | 57° 00' | 23° 15' | 20° 45' |
| 58° 00' | 16° 30' | 18° 00' | 58° 00' | 23° 15' | 21° 00' |
| 59° 00' | 16° 30' | 18° 15' | 59° 00' | 23° 15' | 21° 15' |
| Lat. | Long. | Vari. | Lat. | Long. | Vari. |
|------|-------|-------|------|-------|-------|
| D. M.| D. M.| D. M.| D. M.| D. M.| D. M.|
| 50° 00' | 25° 30' | 20° 00' | 50° 00' | 34° 30' | 24° 00' |
| 51° 00' | 25° 30' | 20° 15' | 51° 00' | 34° 30' | 24° 15' |
| 52° 00' | 25° 30' | 20° 30' | 52° 00' | 34° 30' | 24° 30' |
| 53° 00' | 25° 30' | 20° 45' | 53° 00' | 34° 30' | 24° 45' |
| 54° 00' | 25° 30' | 21° 00' | 54° 00' | 34° 30' | 25° 00' |
| 55° 00' | 25° 30' | 21° 15' | 55° 00' | 34° 30' | 25° 15' |
| 56° 00' | 25° 30' | 21° 30' | 56° 00' | 34° 30' | 25° 30' |
| 57° 00' | 25° 30' | 21° 45' | 57° 00' | 34° 30' | 25° 45' |
| 58° 00' | 25° 30' | 22° 00' | 58° 00' | 34° 30' | 26° 00' |
| 59° 00' | 25° 30' | 22° 15' | 59° 00' | 34° 30' | 26° 15' |
| 50° 00' | 27° 45' | 21° 00' | 50° 00' | 36° 45' | 25° 00' |
| 51° 00' | 27° 45' | 21° 15' | 51° 00' | 36° 45' | 25° 15' |
| 52° 00' | 27° 45' | 21° 30' | 52° 00' | 36° 45' | 25° 30' |
| 53° 00' | 27° 45' | 21° 45' | 53° 00' | 36° 45' | 25° 45' |
| 54° 00' | 27° 45' | 22° 00' | 54° 00' | 36° 45' | 26° 00' |
| 55° 00' | 27° 45' | 22° 15' | 55° 00' | 36° 45' | 26° 15' |
| 56° 00' | 27° 45' | 22° 30' | 56° 00' | 36° 45' | 26° 30' |
| 57° 00' | 27° 45' | 22° 45' | 57° 00' | 36° 45' | 26° 45' |
| 58° 00' | 27° 45' | 23° 00' | 58° 00' | 36° 45' | 27° 00' |
| 59° 00' | 27° 45' | 23° 15' | 59° 00' | 36° 45' | 27° 15' |
| 50° 00' | 30° 00' | 22° 00' | 50° 00' | 39° 00' | 26° 00' |
| 51° 00' | 30° 00' | 22° 15' | 51° 00' | 39° 00' | 26° 15' |
| 52° 00' | 30° 00' | 22° 30' | 52° 00' | 39° 00' | 26° 30' |
| 53° 00' | 30° 00' | 22° 45' | 53° 00' | 39° 00' | 26° 45' |
| 54° 00' | 30° 00' | 23° 00' | 54° 00' | 39° 00' | 27° 00' |
| 55° 00' | 30° 00' | 23° 15' | 55° 00' | 39° 00' | 27° 15' |
| 56° 00' | 30° 00' | 23° 30' | 56° 00' | 39° 00' | 27° 30' |
| 57° 00' | 30° 00' | 23° 45' | 57° 00' | 39° 00' | 27° 45' |
| 58° 00' | 30° 00' | 24° 00' | 58° 00' | 39° 00' | 28° 00' |
| 59° 00' | 30° 00' | 24° 15' | 59° 00' | 39° 00' | 28° 15' |
| 50° 00' | 32° 15' | 23° 00' | 50° 00' | 41° 15' | 27° 00' |
| 51° 00' | 32° 15' | 23° 15' | 51° 00' | 41° 15' | 27° 15' |
| 52° 00' | 32° 15' | 23° 30' | 52° 00' | 41° 15' | 27° 30' |
| 53° 00' | 32° 15' | 23° 45' | 53° 00' | 41° 15' | 27° 45' |
| 54° 00' | 32° 15' | 24° 00' | 54° 00' | 41° 15' | 28° 00' |
| 55° 00' | 32° 15' | 24° 15' | 55° 00' | 41° 15' | 28° 15' |
| 56° 00' | 32° 15' | 24° 30' | 56° 00' | 41° 15' | 28° 30' |
| 57° 00' | 32° 15' | 24° 45' | 57° 00' | 41° 15' | 28° 45' |
| 58° 00' | 32° 15' | 25° 00' | 58° 00' | 41° 15' | 29° 00' |
| 59° 00' | 32° 15' | 25° 15' | 59° 00' | 41° 15' | 29° 15' |
| Lat. | Long. | Vari. | Lat. | Long. | Vari. |
|------|-------|-------|------|-------|-------|
| D. M. | D. M. | D. M. | D. M. | D. M. | D. M. |
| 50   | 43    | 28    | 54   | 57    | 33    |
| 51   | 43    | 28    | 55   | 57    | 33    |
| 52   | 43    | 28    | 56   | 57    | 33    |
| 53   | 43    | 28    | 57   | 57    | 33    |
| 54   | 43    | 29    | 58   | 57    | 33    |
| 55   | 43    | 29    | 59   | 57    | 33    |
| 56   | 43    | 29    | 60   | 57    | 33    |
| 57   | 43    | 29    | 61   | 57    | 33    |
| 58   | 43    | 30    |      |       |       |
| 59   | 43    | 30    |      |       |       |
| 51   | 46    | 29    | 55   | 60    | 34    |
| 52   | 46    | 29    | 56   | 60    | 34    |
| 53   | 46    | 29    | 57   | 60    | 34    |
| 54   | 46    | 29    | 58   | 60    | 34    |
| 55   | 46    | 30    | 59   | 60    | 34    |
| 56   | 46    | 30    | 60   | 60    | 34    |
| 57   | 46    | 30    | 61   | 60    | 34    |
| 58   | 46    | 30    |      |       |       |
| 59   | 46    | 30    |      |       |       |
| 52   | 48    | 30    | 57   | 63    | 35    |
| 53   | 48    | 30    | 58   | 63    | 35    |
| 54   | 48    | 30    | 59   | 63    | 35    |
| 55   | 48    | 30    | 60   | 63    | 35    |
| 56   | 48    | 31    | 61   | 63    | 35    |
| 57   | 48    | 31    | 62   | 63    | 35    |
| 58   | 48    | 31    |      |       |       |
| 59   | 48    | 31    |      |       |       |
| 53   | 51    | 31    | 59   | 66    | 37    |
| 54   | 51    | 31    | 60   | 66    | 37    |
| 55   | 51    | 31    | 61   | 66    | 37    |
| 56   | 51    | 31    | 62   | 66    | 37    |
| 57   | 51    | 31    | 63   | 66    | 37    |
| 58   | 51    | 32    |      |       |       |
| 59   | 51    | 32    |      |       |       |
| 60   | 51    | 32    |      |       |       |
| 54   | 54    | 32    | 60   | 72    | 40    |
| 55   | 54    | 32    | 61   | 72    | 40    |
| 56   | 54    | 32    | 62   | 72    | 40    |
| 57   | 54    | 32    |      |       |       |
| 58   | 54    | 33    |      |       |       |
| 59   | 54    | 33    |      |       |       |
| 60   | 54    | 33    |      |       |       |
| 61   | 54    | 33    |      |       |       |
| Lat. | Long | Vari. |
|------|------|-------|
| D.   | M.   | D.    | M.   |
| 61   | 00   | 75    | 00   | 38   | 00   |
| 62   | 00   | 75    | 00   | 43   | 00   |
| 62   | 50   | 75    | 00   | 45   | 00   |
| 63   | 00   | 81    | 00   | 43   | 00   |
| 64   | 00   | 81    | 00   | 46   | 00   |
| 62   | 00   | 82    | 00   | 39   | 00   |
| 63   | 00   | 82    | 00   | 44   | 00   |
| 61   | 00   | 84    | 00   | 33   | 45   |
| 62   | 00   | 84    | 00   | 40   | 00   |
| 63   | 00   | 84    | 00   | 42   | 00   |
| 60   | 00   | 86    | 00   | 30   | 00   |
| 61   | 00   | 86    | 00   | 33   | 00   |
| 62   | 00   | 86    | 00   | 35   | 00   |
| 59   | 00   | 88    | 00   | 28   | 00   |
| 60   | 00   | 88    | 00   | 28   | 40   |
| 61   | 00   | 88    | 00   | 29   | 20   |
| 57   | 00   | 90    | 00   | 24   | 00   |
| 58   | 00   | 90    | 00   | 24   | 30   |
| 59   | 00   | 90    | 00   | 25   | 00   |
| 57   | 00   | 94    | 00   | 23   | 00   |
| 58   | 00   | 95    | 00   | 22   | 30   |
| 59   | 00   | 95    | 00   | 21   | 00   |

*From Long. 68 Degrees to 81. is in Hudson's Straits, where is the greatest Variation, and the Compass will hardly Traverse.*