Index 



Resistance and magnetism, 

 relations 678 



-, magnetism and tempera- 

 ture, relations 679 



-, measurement 665 



- of metals, temperature re- 



lation 680 



so-called vacuum 685 



-, standards 668 



- and strain, relations 679 



- - temperature, relations 



679 



Eesonance of electromagnetic 

 waves 880 



Besonators, electromagnetic 

 881 



Eevolving field motors 772 



Rheostats 735 



Riemann's theory of mutual 

 action of currents 828 



Rings, Nobili's 811 



Rontgen rays, effect on dis- 

 charge 926 



, ionisation by 897 



Rotating magnetic fields 849 



Rotation, currents induced by 

 839 



-, magnetic, of special sub- 

 stances 890 



- of plane of polarisation by 



magnetism 887 

 thin metallic films 



890 



Rotations, electromagnetic 825 

 Rowland effect 833 

 Ruhmkorff coils 751 



Safety lamps for mines 782 

 Salts, magnetic properties 625 

 Screening, magnetic 605 

 Secondary actions in electro- 

 lysis 797 



- cells 654 



, charge 655 



, electromotive force 656 

 , theory 658 



- Leyden battery 910 

 Selenium , action of light on 925 

 -, resistance, effect of light 



677 

 Self-induction 833 



- coefficients 840 



, measurement 841 



-, effect on electric flow 845 



, measurement 834 



Series, electrochemical 790 



-, thermoelectric 700 



Shadows, electric 894 



Siemens 's mercury standard of 

 resistance 669 



unit, absolute determina- 

 tion 671 



Silent discharge 900 



Silver, electrochemical equi- 

 valent 791 



-, specific resistance 675 



Solenoids 749 , 



Solutions, electrolytic con- 

 ductivity 806 



-, - theory 816 



-, magnetic properties 625 



Sound production by magneti- 

 sation 623 



Spark discharge 688 



-, disintegration by 911 



-, electric 903 



-, ignition by 904 



-, induction- 905 



- potential 689, 906 

 Sparking distance 907 

 Special dynamical theories of 



currents 831 

 Specific resistance 671 



- - of alloys 671 



carbon 672 



copper 674 



liquids 673 



mercury 675 



metals 673 



wires 675 



Splashing of drops, etc., ioni- 

 sation by 898 



Standard cells, electromotive 

 force 691 



- resistance coils 669 

 Standards of resistance 668 

 Standing (or stationary) electro- 

 magnetic waves 879 



Steel, magnetisation 595 

 -, specific resistance 675 

 Strain and resistance, rela- 

 tions 679 



Stratification of discharge 918 

 Stress in dielectrics 581 

 -, magnetic 623 

 Submarine cables 852 



- telegraphy 862 

 Substances, dielectric constants 



of various 583 



, electrolysis of various 787 



-, electrolytic conductivity of 

 various 805 



-, - polarisation of various 

 801 



Subterranean telegraph lines 

 864 



Surface tension 804 



of liquids under electrifica- 

 tion 804 



mercury under electri- 

 fication 804 



Susceptibility, magnetic, mea- 

 surement 612 



-, -, of various substances 616 



Synchronous motors 773 



Tangent galvanometers 733 

 Telegraph cables 852 



- lines 862 



, subterranean 864 



Telegraphic recorders 861 



- relays 861 

 Telegraphs, forms 855 

 Telegraphy 850 



Telegraphy, effect of various 



agents 855 

 -, submarine 862 



- and telephony, simul- 



taneous 862, 871 

 -, wireless 881 

 Telephone, applications 866 

 -, experiments 867 



- lines 872 



- receivers 871 

 -, theory 873 



- transmitters 873 



-, use in measuring resistance 

 665 



Telephones, calling-up appa- 

 ratus 866 



-, forms 868 



-, induction in 869 



- and microphones 870 

 Telephony 865 



-, long distance 869 



- and telegraphy, simul- 



taneous 862, 871 

 -, wireless 883 

 Telephotography 860 

 Temperature and resistance, 



relations 679 

 Terrestrial magnetic field, 



theories 628 

 Tesla currents 850 

 Testing, magnetic 608 

 Theories of diamagnetism 627 



electricity 561 



electrolysis 813 



-, physical, of magnetism 



627 



- of terrestrial magnetic field 



628 

 Theory, Ampere's 627, 827 



- of atmospheric electricity 



591 



conduction through ion- 

 ised gases 689 



dynamos 770 



electric induction 576 



- - light, electromagnetic 



883 



magnetic field 598 



induction 604 



- - mutual action of cur- 



rents, Neumann's 828 



, Riemann's 828 



primary cells 649 



secondary cells 658 



- - solutions, electrolytic 



816 



telephone 873 



Thermal and magnetic pro- 

 perties, relations 619 



Thermocouples 699 



Thermoelectric currents 699 



- experiments 698 

 phenomena 698 



- series 700 

 Thermoelectricity 697 



- of metals 701 



various substances 700 



VI 



