詹姆斯·克拉克·麦克斯韦（James Clerk Maxwell，1831－1879），英国物理学家、数学家，经典电动力学的创始人，统计物理学的奠基人之一。《电磁学通论》共4篇，分为两卷，第一卷内容包括：绪论、静电学和动电学；第二卷内容包括：磁学和电磁学。
詹姆斯.克拉克·麦克斯韦（James Clerk Maxwell，1831-1879），英国物理学家、数学家，主要从事电磁理论、分子物理学、统计物理学、光学、力学、弹性理论等方面的研究。尤其是他建立的电磁场理论，将电学、磁学、光学统一起来，成为19世纪物理学发展的最光辉成果，是科学史上最伟大的综合之一。
麦克斯韦预言了电磁波的存在，他的理论预见后来得到了充分的实验验证。造福人类的无线电技术，就是以电磁场理论为基础发展起来的。麦克斯韦大约于1855年开始研究电磁学，在前人成就的基础上，对整个电磁现象进行了系统、全面的研究，凭借他高深的数学造诣和丰富的想象力接连发表了电磁场理论的三篇重要论文：《论法拉第的力线》《论物理的力线》《电磁场的动力学理论》，对前人和他自己的工作进行了综合概括，将电磁场理论用简洁、对称、完美的数学形式表示出来，经后人整理和改写，成为经典电动力学主要基础的麦克斯韦方程组。1865年他在预言电磁波存在的同时，提出电磁波只可能是横波，推导出电磁波的传播速度等于光速；并得出结论，光是电磁波的一种形式，揭示了光现象和电磁现象之间的联系。麦克斯韦在热力学与统计物理学方面也作出了重要贡献，他是气体动理【学理】论的创始人之一。
麦克斯韦被普遍认为是对物理学的发展最有影响的物理学家之一。没有电磁学就没有现代电工学，也就不可能有现代文明。
PART III．MAGNETISM
CHAPTER I．ELEMENTARY THEORY OF MAGNETISM
371．Properties of a magnet when acted on by the earth
372．Definition of the axis of the magnet and of the direction of magnetic force
373．Action of magnets on one another．Law of magnetic force
374．Definition of magnetic units and their dimensions
375．Nature of the evidence for the law of magnetic force
376．Magnetism as a mathematical quantity
377．The quantities of the opposite kinds of magnetism in a magnet are always
379．A magnet is built up of particles each of which is a magnet
381．Magnetization is of the nature of a vector
382．Meaning of the term 'Magnetic Polarization'
383．Properties of a magnetic particle
384．Definitions of Magnetic Moment， Intensity of Magnetization， and
385．Potential of a magnetized element of volume
386．Potential of a magnet of finite size．Two expressions for this potential， corresponding respectively to the theory of polarization， and to that of magnetic
387．Investigation of the action of one magnetic particle on another
389．Potential energy of a magnet in any field of force
390．On the magnetic moment and axis of a magnet
391．Expansion of the potential of a magnet in spherical harmonics
392．The centre of a magnet and the primary and secondary axes through
393．The north end of a magnet in this treatise is that which points north， and thesouth end that which points south．Boreal magnetism is that which is supposed to exist near the north pole of the earth and the south end of a magnet．Austral magnetism is that which belongs to the south pole of the earth and the north endof a magnet．Austral magnetism is considered positive
394．The direction of magnetic force is that in which austral magnetism tends to move， that is， from south to north， and this is the positive direction of magnetic linesof force．A magnet is said to be magnetized from its south end towards its north
CHAPTER II．MAGNETIC FORCE AND MAGNETIC INDUCTION
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PART IV ELECTROMAGNETISM
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