A Treatise on Electricity and Magnetism Volume 2 475.jpg
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A Treatise on Electricity and Magnetism Volume 2 475, Magnetic scalar potential, Magnetic field lines, A Treatise on Electricity and Magnetism diagrams, A Treatise on Electricity and Magnetism Volume II
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電気及磁性論考巻2475、磁気スカラーポテンシャル、磁場線、電気及磁性図論、電気及磁性論第2巻
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magnetically nonmagnetic magnetism line of force scalar field magnetic line of force treatise tract scalar tractive magnetization electrical system magnetic field