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| NON posseduto | |
| Autore principale: | Hansteen, Christopher, 1784-1873.
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| Titolo: | Observations on the position and revolution of the magnetic poles of the earth / by Christopher Hansteen. |
| Note: | Includes bibliographical references |
| In: |  Edinburgh journal of science Vol. 5 (1826), p. 65-71 |
| 000000171916 |
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