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| NON posseduto | |
| Autore principale: | Lloyd, Humphrey, 1800-1881.
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| Titolo: | On a new magnetical instrument for the measurement of the inclination and its changes / by the rev. Humphrey Lloyd ... |
| Pubblicazione: | Dublin : printed at the University Press by Graisberry and Gill, 1842. |
| Descrizione fisica: | 16 p. ; 23 cm |
| Note: | From: Proceedings of the Royal Irish academy |
| 000000966433 |
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