INDEX. 



573 



Motion, adiabatic, 133, 134 

 concealed, 127 



cyclic, 128 

 ,, differential equations of, 97 



isocyclic, 133, 134 

 Multiform function, 14 

 Multiplication, geometric, 10 

 Multiplier, Jacobi's, 69 



,, undetermined, 105 

 Muraoka, 407 

 Mutual potential energy, 220 



Nabla, 25 



Nachwirkung, 394 



Networks of conductors, 337, 491 



Maxwell's treat- 



ment of, 339 

 Neumann, 179, 290, 429, 431, 467, 469, 



471 



Newton, 108, 203 

 laws of, 95 



theorem of, 203 

 Newtonian forces, 113 



law, electric, 251 

 Nichols, 407 



Non-linear conductors, 344 

 Notation, table of comparative, 560 

 Numbers, complex, 4 

 imaginary, 5 

 ,, integer, 1 

 ,, irrational, 2 

 Numeric, 97 



Oberbeck, 502 

 Oersted, 409 

 Ohm, 325 



unit, 416 

 Ohm's law, 326, 332 

 Operators, abbreviations for, 153 

 Order, right-handed, 8 

 Orthogonal coordinates, 21, 83 

 Orthomorphosis, 85 

 Oscillation, damped, 486 



electrical, 488, 491 



forced, and free, 489 



of function, 37 



,, harmonic, 479 



Oscillator, spherical, 527 



Parallel, conductors in, 336 

 Parallel elements, attraction of, 413 

 Parallelogram, Wheatstone's, 342 



Parameter, differential, 21 



first, vector, 22 



,, second, scalar, 64 



Paris, 97, 416 



Path, dependence of integral on, 53 

 Pendulum, gyroscopic, 131 

 Period, 479 



Periodic electromotive force, 477 

 Permanent magnets, 389 

 Permeability, 357 

 Permittance, 360 

 Physics, axioms of, 95 

 definition of, 91 

 ,, mathematical, 91 

 Picard, 56, 171, 179, 183, 540 

 Planes, parallel, distribution on, 279 

 Pockels, 523 



Poincare, 527, 530, 533, 540, 545 

 Point, branch or critical, 88 

 Point-function, 20 



charge in sphere, 366 



Poisson, 193, 515 



,, equation of, 152 

 for logarithmic potential, 178 

 for surface, 162, 169 

 Poisson 's theory of induction, 368 

 Polarization, 361 



of ellipsoid, 370 

 intensity of, 228 

 intrinsic, 389 



Heaviside's treat- 

 ment of, 391 

 lamellar, 235 



solenoidal, 235 



of sphere, 371 



field due to, 372 

 uniform, 368 



potential due to, 



234 

 Polarized body, 226, 228 



distributions, energy of, 239 



,, forces on, 381 



potential of, 231 



development of, 240 



shells, 236 



Positional coordinates, 132 

 Potential function, characteristics of, 154 

 ,, coefficients of, 266 



,, completely defined by 



characteristic pro- 

 perties, 167 



