INDEX. 



The numbers refer to the pages. 



Action at a distance, 138, 430, 432 



,, mechanical, in propagation of light, 530 

 ,, see also mechanical force 



,, principle of least, 477, 499 

 Alternating currents, induction of, 446, 453, 



488 



,, ,, induction of in con- 



tinuous media, 467 

 Amber, electrification of, 1 

 Ampere, theory of magnetism, 3, 492, 493 

 Angle of conductor, lines of force near, 61 

 Anisotropic dielectrics, 133, 150, 528 



,, ,, propagation of light 



in, 528 



Argand diagram, 258 

 Argument of a complex quantity, 258 

 Attracted disc electrometer, 105 



Ballistic galvanometer, 426 

 Biaxal harmonics, 237 

 Boscovitch, 139 

 Bound charge, 126, 350 



Boundary-conditions, in dielectrics (electro- 

 static), 121 

 ,, ,, in conducting media, 



335 

 ,, in magnetic media, 401, 



402 

 in propagation of light, 



516 

 Bowl, spherical, distribution of electricity on, 



245 

 Bridge, Wheatstone's, 304, 305 



Cable, submarine, 79, 308, 321, 340 

 Capacity of conductor or condenser, 67 

 ,, coefficients of, 93, 97 

 inductive, of dielectrics, 74, 115 

 Cavendish, proof of law of inverse square, 



13, 37 

 experiments on dielectrics, 115 



Circular disc, distribution of electricity on, 



244 



Coefficients of potential, capacity and in- 

 duction, 93, 96 



Collinear charges, field from, 57 

 Complex quantities, 258 

 Condenser, 66, 67 



,, spherical, 71, 99 



,, cylindrical, 73, 262 



,, parallel plate, 74, 269 



,, compound, 75 



,, practical, 77 



,, discharge of a, 321, 349, 447, 486 



Conditions at boundary between two media, 



see boundary-conditions 

 Conductor, 5, 66 



,, lightning, 61 



spherical, 66, 185, 192, 202 



,, nearly spherical, 227 



,, cylindrical, 67, 262 



,, ellipsoidal, 241, 248 



plane, 69, 182, 202 



,, mechanical action on surface of, 



79 



,, energy of discharge of, 83 



Confocal coordinates, 239 



,, cylinders, 265 

 Conformal representation, 259, 275 

 Conjugate functions, 256 

 Conservation of energy in electrostatic field, 



28, 32 

 ,, ,, in electromagnetic 



field, 441 

 Contact, two conductors in, 101 



,, difference of potential, 297 

 Continuity, equation of, 333, 466 

 Coordinates, curvilinear, 238 

 ,, generalised, 478 



Coulomb, 11, 13 



,, laws in electrostatics, 45, 121 

 Crystalline dielectrics, 133, 150, 528 



