INDEX.

A
Acid, Chromic, [189].
" Sulphuric, [212].
Air pump, Geissler, [142].
" " Simple, [141].
" " Sprengel, [143].
" blast, [76].
" wire, [262].
Amalgamation, [180].
Assembly of coil, [22].
Attraction, Window, 154, [163].
Automobile coil, [40].
Automatic burners, [170].
Automatic burners, Adjustment, [176].
B
Ballistic galvanometer, [99].
Barium platino cyanide, [238].
Base for coil, [30].
Bath coil, [61].
Battery, Bichromate, [180].
" Champion, [179].
" Daniell, [191].
" Dun, [187].
" Edison-Lalande, [195].
" Fuller, [184].
" Gas-lighting, [179].
" Gethins, [193].
" Gordon, [194].
" Gravity, [191].
" Grenet, [180].
" Harrison, [219].
" Monarch, [179].
" Morisot, [188].
" Novelty, [182].
" Open circuit, [178].
" Polarization, [179].
" Samson, [179].
" solutions, [185], [188], [189].
" Standard dry, [196].
" Storage, [200].
" Storage, to charge, [208].
" Storage, to make, [101].
" Storage, to seal, [215].
" U. S. storage, [218].
Beeswax, [95].
Brush, Electric, [128].
C
Capacity of condenser, [100].
Carbons for battery, [182].
Cements, [97].
Charging condenser, [110].
Chromic acid, [189].
Closed magnetic circuit, [6].
Coherer, Aluminium, [251].
" Branly, [254].
" Carbon, [256].
" Steel ball, [258].
Coil, Failure to work, [49].
" for gas engine, [37].
" general remarks, [42].
" in series, [32].
" Medical, [51].
" Oil immersed, [33].
" Output of, [46].
" Primary, [7].
" Resistance, [40].
" Secondary, [10].
" Table of dimensions, [50].
" Tesla, [35].
" Testing, [44].
" To select, [46].
" Winding, [20].
Condensers, Aluminium, [115].
" Adjustable, [117].
" Charging, [110].
" capacity, 100, [119].
" Discharge of, [225].
" Glass, [101].
" Mica, [108].
" Oil, [116].
" Paper, 105, [107].
" Rolled up, [115].
" Series, [108].
Cone vibrator, [88].
Contact breaker, [26].
" " Adjustable medical, [85].
" " Adjustable cone, [88].
" " Dessauer, [80].
" " Electrolytic, [77].
" " Highspeed, [69].
" " in vacuo, [81].
" " Polechanging, [73].
" " Queen, [83].
" " Queen, large form, [84].
" " Steel ribbon, [80].
Contacts, Care of, [90].
Core, [4].
" Iron filing, [46].
Crookes tube, [241].
D
Dessauer contact breaker, [80].
Dielectric, [104].
Discharger, [26].
Dry cell, [196].
Dun cell, [187].
E
Eddy currents, [6].
Edison-Lalande cell, [195].
Electric sand, [189].
Electrode, [190].
Electrolyte, [213].
Electrolytic interrupter, [77].
Ends for coil, [25].
Extra current, [3].
F
Farad, [100].
Fluoroscope, [239].
Fluorescence, [137].
Foucault currents, [6].
Frauenhofer lines, [135].
Frontispiece, Notes on, [42], [47].
G
Galvanometer, [99].
Gas burners, [170].
" engine coil, [39].
" from water, [44].
" lighting, [164].
Gassiot star, [153].
Geissler tube, [159].
Glass, To pierce, [130].
Gordon battery, [194].
H
Harrison cell, [219].
Hertz resonator, [226].
Hydrometer, [211].
Hysteresis, [6].
I
Induction, [1].
" Self, [8].
Insulations, [97].
L
Leyden jars, [99].
Lighting gas, [164].
M
Magnetic circuit, Closed, [6].
Medical coils, [51].
" " Care of, [62].
Mercury contact breaker, [71].
Mica condenser, [61].
N
Noise of contact breaker, [63].
O
Oil, Capacity of, [119].
" Coil immersion, [33].
" for oscillator, [260].
" Linseed, [93].
" Resin, [96].
" Spark through, [95].
Oscillator, [258].
" Clarkes, [259].
" Triple, [259].
Output of coil, [46].
P
Paper condenser, [107].
Paraffin, [94].
Phosphorus tube, [239].
Photography, X-Ray, [245].
Pocket coil, [89].
Polarity tests, [45].
Pole, [190].
Polechanging switch, [32].
Polechanging contact breaker, [73].
Primary coil, [7].
Q
Queen contact breaker, [83].
" Crookes tube, [241].
R
Radiography, [245].
Reel ends, [25].
Resistance coils, [40].
Resonance, Electric, [226].
Resonator, Hertz, [226].
Rheotome, [2].
Roentgen Ray apparatus, [236].
Rotating wheel, [154].
S
Series, Coils in, [32].
Selection of coil, [46].
Shellac, [96].
Signs, Battery, [190].
Soda, Bichromate of, [183].
Spark, Electric, [120].
" Choice of, [47].
Spectroscope, [132].
Spectrum, Solar, [132].
Standard dry cell, [196].
Sulphating, [215].
Switch, Polechanging, [32].
T
Table of cost, [191].
Tesla coil, [35].
" " disruptive, [36].
Testing polarity, [46].
Transformer, [5].
Tube, Insulating, [9].
U
U. S. storage cell, [218].
V
Vacuum, Adjusting, [242].
" Choice of, [243].
" Contact breaker, [81].
" To procure, [141].
" pumps, [140].
W
Water, Decomposition of, [44].
Wax, [95].
Wehnelt interrupter, [77].
Wheel, Rotating, [154].
Winder, Coil, [16].
Winding coils, [20].
" Secondary, 10, [14].
" Sectional, [11].
Wire for secondary coil, [24].
" " primary coil, [9].
Wires, Air, [262].
Wireless telegraphy, [248].
Wireless telegraphy circuit, [250].
X
X-Ray apparatus, [236].
" Remarks, [243].
" photographs, [246].