INDEX. 



INDEX. 



The references are to the numbers of the articles. Those from I to 655 are in the 

 First, and from 656 to 1296 in the Second, Volume. 



ABSOLUTE C.G.S. system, 612; in- 

 struments, 826; measurements, 1014. 



Absorption, electrical, 109. 



Acceleration, dimensions of unit, 605. 



Accumulators, 1249. 



Action, chemical, constant of, 1290. 



Active magnetism, 1271. 



Alloys, resistance of, 1291. 



Alternating currents, 1107; measured 

 by the electrometer, 805. 



Ampere, 613; chemical action of an, 

 918, 1290. 



Ampere's theory, 425 ; of magnetism, 

 498 ; theorem, 450 ; method, experi- 

 ment, hypothesis, 618. 



Analogous pole, 1075. 



Anchor ring, magnetisation of an, 411. 



Angles, measurement of, 656, 658. 



Angular current, 481. 



Anions, 249. 



Anisotropic bodies, 392, 1226 ; con- 

 ductors, 215; media, 635. 



Annular coil, 496, 954. 



Anode, 249. 



Antilogous pole, 1075. 



Aperiodic motion, 685. 



Apparent magnetisation, 407 ; resist- 

 ance, 1280. 



Arago's experiment, 587. 



Archimedes, principle of analogies in 

 magnetisation, 382. 



Armatures, 78. 



Artificial field, 840 ; magnets, 288. 



Astatic circuits, 489 ; systems, 299 ; 

 needles, 841. 



Atoms, distance of the, 191. 

 Attraction by induction, 996. 

 Available work, 1243. 

 Axis of a magnet, 295 ; magnetic of 

 the earth, 306. 



B 



BAD conductors, 1015. 



Balance, 657 ; coulombs, 799 ; electro- 

 meters, 749 ; electromagnetic, 855 ; 

 electrodynamometric, 866 ; torsion 

 or unifilar, 415, 706, 719; bifilar, 

 714; compared with unifilar, 719; 

 Wheatstone's, 942. 



Barlow's problem, 389 ; wheel, 483. 



Batteries, electrical, 89, 190; discharge 

 of, 93-95 ; electrostatic phenomena 

 in, 264; voltaic, 1241. 



Battery, resistance of a voltaic, 962. 



Becquerel's law, 258, 272. 



Berlin's experiment, 485. 



Betti's theory, 626. 



Bifilar balance, 714; suspension, 842. 



Bilateral deflection, 901. 



Biot and Savart's experiments, 444, 



463- 



Bismuth, inverse polarity of, 1219. 

 Bohnenberger's electrometer, 749. 

 Boltzmann's researches, 634. 

 Bowl, potential of a spherical, 793. 

 Boxes, conductivity, 928; resistance, 



926. 



Branch circuit, 867 ; currents, 547. 

 Bridge, Wheatstone's, 942 ; conditions 



of sensitiveness of, 947, 953, 963. 



