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Requesting The magnetism of ships, and the mariner's compass [microform] : being a rudimentary exposition of the induced magnetism of iron in sea-going vessels, and its action on the compass, in different latitudes, and under diversified circumstances / by William Walker

Requesting The magnetism of ships, and the mariner's compass [microform] : being a rudimentary exposition of the induced magnetism of iron in sea-going vessels, and its action on the compass, in different latitudes, and under diversified circumstances / by William Walker
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