MAP
Curves of equal magnetic variation, 1947. Sheet 2, Indian and Western Pacific Oceans [cartographic material] : reduced to the epoch June 1947 from observations by officers of His Majesty's Navy and from surveys carried out by colonial and foreign governments and by the Carnegie Institution of Washington / compiled at the Royal Observatory, Greenwich.
- Date
- 1947
- By
- Great Britain. Hydrographic Office., Royal Observatory, Greenwich., Carnegie Institution of Washington., Great Britain. Admiralty.
- Notes
Inset: Curves of approximate annual change of the magnetic variation in minutes of arc.
Shows easterly and westerly magnetic variations.
"Hydrographic Office."
"Engraved 1912."
"3776."
Scale [ca. 1:20,000,000] (E 42°-- E 168°/N 72°--S 65°).
- Other Titles
- Indian and Western Pacific Oceans
- Publisher
- London : Published at the Admiralty, 1947.
- Format
- 1 map : col. ; 97 x 64 cm.
See original record
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