File:Coast and Geodetic Survey Magnetometer Plate XV Fig 1 WBClark 1897.jpg
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Summary
Plate XV (Instruments Used in Magnetic Observations), Figure 1, of 1897 publication called Maryland Geological Survey Volume One, with caption "Coast and Geodetic Survey <a href="https://en.wikipedia.org/wiki/Magnetometer" class="extiw" title="en:Magnetometer">Magnetometer</a> No. 18."
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 14:28, 8 January 2017 | ![]() | 1,117 × 1,424 (141 KB) | 127.0.0.1 (talk) | Plate XV (Instruments Used in Magnetic Observations), Figure 1, of 1897 publication called Maryland Geological Survey Volume One, with caption "Coast and Geodetic Survey <a href="https://en.wikipedia.org/wiki/Magnetometer" class="extiw" title="en:Magnetometer">Magnetometer</a> No. 18." |
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