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Curves of equal magnetic variation, 1871
- Author / Creator
- Available as
- Physical
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- Creator
- reduced to that epoch from observations at sea made chiefly by the officers of His Majesty's Navy and from various magnetic surveys undertaken by colonial and foreign governments, 1855-1870, by Staff Captain F.J. Evans, F.R.S. and Navigating Lieutt. E.W. Creak, Royal Navy ; published at the Admiralty Novr. 1st 1871 ; Engraved by Malby & Sons
- Format
- Maps, Atlases
- Language
- English
- Contributors
- Publication
-
- London : Hydrographic Office, Admiralty, 1871
- Series
- Physical Details
-
- 1 map ; 44 x 97 cm, on sheet 69 x 102 cm
- OCLC
- on1001463691
- Cartographic Data
-
Scale approximately 1:33,600,000(E 128°00ʹ00ʺ--E 179°59ʹ00ʺ/N 72°00ʹ00ʺ--S 65°00ʹ00ʺ).
- Relief shown by hachures.
- Includes magnetic variation lines and 3 inset maps: South Polar chart -- North Polar chart -- Approximate annual change of the magnetic variation for the epoch 1871 in minutes of arc.
- "2598."