648 INDEX OF SUBJECTS. 



PAGE 



Force in the Interior of a Magnet 307 



Magnetic Force 309 



Magnetic Induction 309 



Line, Tube, Flow of Induction 310 



Different Kinds of Magnets 310 



Magnetic Solenoids. Magnetic Power of a Solenoid 310 



Solenoidal Magnets . . . 312 



Magnetic Shells 312 



Lamellar Magnets 316 



Potential of Magnetisation 316 



Potential of a Solenoidal Magnet 318 



Potential of a Lamellar Magnet 318 



Potential of Induction 322 



Potential Energy of Magnets 323 



Energy of a Magnetic Shell 324 



Action of a Field on a Shell 326 



Reciprocal Action of Two Shells 330 



Relative Energy of Two Shells 335 



Neumann's Formula 337 



CHAPTER III. PARTICULAR CASES. 



Potential of a Uniform Magnet 338 



Sphere 339 



Ellipsoid 340 



Cylinder Magnetised Transversely 344 



Potential of Magnetic Shells 345 



Potential of a Circular Layer 348 



Potential of a Uniform Circular Shell 352 



Potential of a Spherical Layer 353 



Solenoidal Magnets 355 



Cylinder 356 



CHAPTER IV. MAGNETIC INDUCTION. 



General Characteristics of Magnetic Induction 358 



Induced Magnetisation is Proportional to the Magnetising Force . . . 359 



The Induced Magnetisation is Superficial 360 



Equation of Continuity. Coefficient of Induction 362 



Case of Two Different Magnetic Media. Relative Magnetisation .... 363 



Magnetic Susceptibility and Permeability 366 



Anisotropic Bodies 366 



Uniform Magnetisation 367 



Sphere , 368 



Poisson's Hypothesis 369 



