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| NON posseduto | |
| Autore principale: | Hansteen, Christopher, 1784-1873.
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| Titolo: | Observations on the intensity of magnetism in different parts of the earth's surface / by Christian Hansteen. |
| In: |  Edinburgh journal of science Vol. 4 (1826), p. 323-32 |
| 000000171856 |
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