A Treatise on Electricity and Magnetism Volume 1 442.jpg
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A Treatise on Electricity and Magnetism Volume 1 442, A Treatise on Electricity and Magnetism Volume I
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ja
電気・磁気論上巻第一四百四十二号、電気・磁気論上巻第一
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nonmagnetic magnetism magnetically treatise tract electrical system