INDEXToC

INDEXToC

A Accumulated, 31. Accumulation, 29. Accumulator cell, 87. Accumulators, 82, 88, 89. Accumulators, plates, 83. Acid, 34, 37, 125. Acid maker, 125. Acid, sulphuric, 31, 84. Acidulated, 55. Acidulated water, 34. Acoustics, 110. Actinic rays, 184, 185. Actinium, 186. Active element, 82. Adjustable rod, 107. Adjusting screw, 70, 71, 72, 73, 106. Aerial wire, 108. Agents, 13, 32. Alarms, burglar, 11, 76, 80. Alkali, 125. Alkaline, 37. Alternate, 127. Alternating, 38, 149, 150, 153, 154, 155, 156. Alternating current, 145. Alternating periods, 149. Alternations, 147. Aluminum, 128, 129, 135, 137. Aluminum hydrate, 129. Amber, 5, 171. Ammeter, 7, 88. Amperage, 38, 61, 62, 132, 159, 160, 168. Ampere, 7, 37, 60, 63, 139, 140, 167. Amplitude, 111. Annunciator, 65, 74, 76, 79, 80, 81. Annunciator bells, 11. Anode, 35, 133, 134. Antennæ, 108. Antimony 137, 143. Anvil, 13, 14. Apparatus, 11, 57, 106, 139, 145. Arc, 163, 182. Arc lighting, 38, 165. Arc system, 166. Armature, 18, 25, 38, 40, 42, 43, 45, 46, 47, 48, 53, 55, 70, 72, 73, 74, 90, 93, 112, 151, 152, 155, 163, 176, 177, 178, 179, 180.

Armature brush, 48. Armature post, 71. Armature, vertical, 75. Armature winding, 42, 43, 156. Asbestos, 140. Astatic galvanometer, 108. Atmosphere, 184. Attract, 30. Attracted, 72. Attraction, 21, 25. Attractive, 178. Automatic, 120. Auxiliary, 44. Awls, 14. B Bacteria, 126, 187. Bar, cross, 66. Bar, horizontal, 46. Bar, parallel switch, 67. Bar, switch, 65, 68. Base block, 66. Batteries, 11, 93, 122. Battery, 29, 30, 32, 35, 36, 46, 47, 80, 81, 82, 83, 85, 86, 88, 92, 94, 95, 107, 108, 116, 117, 118, 121, 134, 142. Battery charging, 82. Bearings, 45, 46. Bells, 65, 73, 76, 122. Bells, electric, 70. Bench, 13, 15, 17. Binding post, 52, 70, 71, 72, 103, 107, 108, 121. Binding screw, 65, 66. Bismuth, 18, 143. Bit, 13. Blue vitriol, 57. Brass plate, 77, 78. Brazing, 17, 65. Bridge, 52. Brush holder, 46. Brushes, 48, 150, 151, 153, 167. Burglar, 11. Burglar alarm, 76, 80. Buttons, contact, 80. Buttons, push, 65, 68, 69, 70, 76, 79. C Calorimeter, 56. Cancerous, 187. Candle power, 89, 139. Cap, removable, 73. Cap screws, 42. Carbon, 35, 119, 121, 162, 163, 169. Carbon block, 120.

Carbon pencil, 119. Cathode, 35, 36, 133, 134. Cell, 29, 33. Cell, accumulator, 87. Cell, charging, 87. Channel, 43. Channel, concave, 40. Charged, 120. Charged battery, 82. Charging circuit, 82, 89. Charging source, 83. Charged wire, 147. Chemical, 57. Chisels, 13. Chloride of lime, 84. Choked, 157. Choking coils, 145, 146, 156, 158. Circuit, 33, 69, 73, 76, 78, 80, 81, 90, 92, 93, 109, 113, 116, 121, 122, 131, 134, 143, 156. Circuit, primary, 99. Circuit, secondary, 99. Circuiting, 81, 155. Circuiting system, 79. Clapper arm, 70. Closed rings, 26. Coherer, 105, 108, 109. Cohering, 106. Coils, 18, 26, 52, 55, 74, 160. Coils, choking, 145, 146, 156, 158. Coils, induction, 99, 102. Coils, primary, 109. Coils, secondary, 102, 109. Coincide, 42. Cold, 14. Collecting surfaces, 30. Collector, 31. Column, 61. Combustion, 169. Commutator, 44, 46, 151, 152. Commutator brushes, 46. Commutator plates, 45. Compass, 22, 24, 172. Composition, 83, 124. Compound wound, 47. Concave channel, 40. Condenser, 98, 100, 101, 102, 108. Conduct, 6, 108. Conduction, 135, 136, 138, 166, 170. Conduction current, 27. Conductor, 21, 31, 33, 63, 98, 116, 161, 162. Conduit, 72. Conically formed, 126. Conjunction, 143. Connecting wire, 58. Connection, 72, 76. Construction, magnet, 39. Consumption, 180.

Contact, 122, 123, 152, 162. Contact finger, 150. Contact plate, 67, 68, 79. Contact screws, 93. Contact surface, 66. Continuous, 145. Converter, 176. Converting, 142, 145, 146. Copper, 18, 34, 36, 65, 66, 132, 133, 134, 135, 136, 137, 142, 143. Copper cyanide, 133. Copper plate, 33, 35, 58, 67. Copper sulphate, 57. Copper voltameter, 55, 57. Core, 27, 28, 36, 39, 40, 115. Core, magnet, 75, 93. Counter, clock-wise, 51. Coupled, 36. Crank, 30. Crookes' tube, 184. Cross bar, 52, 66. Crown of cups, 32. Crystal, 85. Current, 6, 7, 13, 18, 26, 27, 28, 35, 36, 37, 38, 47, 50, 51, 52, 55, 56, 57, 58, 59, 62, 63, 70, 72, 73, 90, 95, 98, 105, 108, 116, 133, 134, 135, 136, 138, 139, 140, 141, 142, 143, 147, 148, 149, 150, 152, 153, 157, 160, 161, 163, 165, 166, 170. Current, alternating, 150. Current changing, 82. Current conduction, 27. Current, continuous, 164. Current, direct, 145, 150. Current direction, 50. Current, exterior, 50, 150. Current, reversing, 148. Current strength, 7, 57. Current testing, 143. Cut-out, 120. Cutter, 14. Cutting, lines of force, 38. Cylinder, 44. Cylindrical, 43. D Dash, 95, 97. Decoherer, 106, 108. Decomposed, 57, 128. Decomposes, 55. Decomposing, 123. Decomposition, 12, 35, 82. Deflected, 54. Degree, 135, 162. Demagnetized, 24, 72. Deposited, 58, 133.

Depression, 15, 140. Detecting current, 49. Detector, 49, 52, 54, 105. Devices, measuring, 27. Diagrams, 46, 48, 79, 89. Diagrammatically, 81. Diamagnetic, 19. Diametrically, 114. Diaphragm, 112, 113, 116, 120, 122. Diamonds, 186. Diluted, 86. Direct current, 38, 140. Direction of current, 50. Direction of flow, 98. Discharge, 172. Disintegrate, 132. Disk, 43. Dissimilar, 37. Disturbance, 176. Dividers, 14. Divisibility, 168. Dot, 96, 97. Dot and dash, 96. Double click, 95. Double line, 65. Double-pole switch, 65. Double-throw switch, 117. Drawing, 20. Drill, ratchet, 13. Drops, 81. Ductile, 186. Duplex wire, 115. Dynamo, 7, 27, 38, 42, 46, 48, 62, 82, 83, 87, 89, 132, 141, 142, 145, 150, 155, 161, 165, 167, 175, 176, 180, 187. Dynamo fields, 40, 41. E Earth, 22. Elasticity, 100, 142. Electric, 6, 31, 49, 50, 76, 78, 81, 131, 142, 158, 162, 173, 176. Electric arc, 63, 163. Electric bell, 19, 69, 70, 71, 72, 106, 117. Electric bulbs, 167. Electric circuit, 118. Electric fan, 55. Electric field, 76. Electric hand purifier, 129. Electric heating, 135, 137, 161. Electric iron, 130, 141. Electric lamp socket, 139. Electric light, 56, 66. Electric lighting, 161. Electric power, 113. Electric welding, 183. Electrical, 8, 11, 65, 96, 98, 104, 141, 159, 180, 184, 187.

Electrical impulses, 105, 147, 148. Electrical manifestations, 175. Electrically, 32, 70. Electricity, 5, 6, 7, 8, 9, 12, 13, 18, 21, 26, 27, 28, 29, 38, 49, 54, 60, 61, 62, 82, 97, 98, 100, 104, 110, 112, 116, 123, 124, 133, 134, 136, 138, 145, 146, 147, 154, 156, 160, 166, 170, 171, 172, 175, 182, 187. Electricity measuring, 49. Electricity, thermo-, 142. Electrified, 37, 186. Electro-chemical, 55. Electrode, 35, 124, 127, 128, 161, 162, 163, 164, 165, 184. Electrolysis, 7, 123, 126, 132. Electrolyte, 33, 35, 36, 57, 86, 88, 123, 132, 142. Electrolytic, 55, 123, 125. Electro-magnet, 59, 78. Electro-magnetic, 7, 24, 25, 29, 37, 55, 92, 93, 94. Electro-magnetic force, 7. Electro-magnetic rotation, 7. Electro-magnetic switch, 116. Electro-meter, 7. Electro-motive force, 37, 63, 99. Electroplate, 12, 38, 48, 123, 132, 134. Electro-positive-negative, 142, 143. Elements, 36, 83. Engine energy, 170, 180. Equidistant, 127. Ether, 104. Example, 61. Excited, 47. Extension plate, 103. Exterior, 3. Exterior magnetic, 27. External, 37. External circuit, 153. External current, 50. External resistance, 37. F Factor, 61. Ferrous oxide, 125. Field, 46, 47. Field, dynamo, 40, 41. Field magnet cores, 155. Field, magnetic, 38. Field of force, 33. Field wire, 48. Filament, 168, 169, 170. Filter, 128. Flat iron, 140. Flocculent, 128. Force, 50. Formulated, 19.

Friction, 32. Frictional, 6, 7, 29. Fuse, 169. G Galvani, 7. Galvanic, 7, 23, 30. Galvanometer, 7, 49, 108, 143. Galvanoscope, 55, 58, 59. Gaseous, 128. Gasoline, 99. Gas stove, 17. Gelatine, 128. Generate, 29, 38, 134, 136, 145. Generated, 55. Generating, 32, 134. Generation, 170. Generator, 32, 125, 147. German silver, 136, 137. Germicide, 187. Gimlets, 17. Glass, 30, 86, 126, 186. Gold, 135. Grid, 84. Ground circuit, 121. Gunpowder, 6. H Hack-saw, 14. Hammer, 13. Heart-shaped switch, 77. Heater, 136. Heating, 13, 38. Hertzian rays, 170. Hertzian wave, 184. High tension, 38, 102, 184. High tension apparatus, 98. High tension coils, 103. High voltage, 158. Horizontal bar, 46. Horseshoe magnet, 22, 24, 175. Hydrate of aluminum, 129. Hydrogen, 35, 123, 125, 128. I Igniting, 99. Illumination, 162, 163, 165, 167, 170. Immersed, 133. Impulses, 60, 62, 96, 104, 109, 152, 179. Incandescent, 166, 168. Induced, 28. Inductance, 149, 150. Induction, 27, 37, 98, 147. Induction coils, 99, 102, 106. Influences, 178. Initial charge, 88.

Insulated, 27, 28, 40, 43, 52, 55, 73, 115, 151, 180. Insulating, 66, 69, 120, 140, 164. Insulating material, 114. Insulation, 40, 116. Instruments, 49, 94, 112, 118, 120. Instruments, measuring, 8. Intensity, 55, 60, 104, 154. Interior, magnetic, 23. Internal resistance, 37. Interruption, 102, 103. Installation, 168. Ionize, 186. Iron, 19, 132, 133, 136, 142, 171. Isolated, 186. J Jar, 29, 31, 32. Journal, 46. Journal block, 16, 146. Jump spark, 99. K Key, 90, 91, 95. Key, sending, 90. Knob, 32. Knob, terminal, 31. L Laboratory, 9. Lead, 31, 136. Lead, precipitated, 83, 85. Lead, red, 83, 84. Lever switching, 67. Light, 104. Light method, 56. Lighting, 9, 38. Lighting circuit, 48. Lighting system, 82. Lightning, 6, 171, 172, 173. Lightning rod, 173. Lime, chloride of, 84. Line of force, 146. Line wire, 122. Line, magnetic, 22, 23. Liquid, 32. Litharge, 83. Loadstone, 17. Locomotives, 165. Low tension, 38, 98, 102, 179. M Magnet bar, 20. Magnet core, 16, 75, 93. Magnet, electro, 59, 78. Magnet, horseshoe, 22, 25, 175.

Magnet lines, 22, 23. Magnet, permanent, 25, 38, 46, 50, 172. Magnet, reversed, 20. Magnet, steel, 53. Magnet, swinging, 53. Magnetic, 7, 19, 20, 21, 22, 25, 113, 178. Magnetic construction, 39. Magnetic exterior, 27. Magnetic field, 22, 24, 27, 38, 50, 112, 146, 148, 155. Magnetic interior, 23. Magnetic pull, 59. Magnetic radiator, 37. Magnetism, 19, 54, 104, 110, 159, 171. Magnetized, 18, 25, 27, 50. Magnetized wire, 146. Magnets, 13, 14, 18, 19, 20, 21, 22, 23, 24, 25, 39, 51, 53, 54, 70, 71, 73, 75, 81, 90, 93, 112, 113, 115, 147, 150, 163, 176, 177, 178. Main conductor, 31. Mandrel, 15, 16. Manganese, 19. Manifestations, 19. Mariner, 172. Material, non-conducting, 90. Maximum, 154. Measure, 55, 56, 60, 62. Measurement, 62. Measuring devices, 27. Measuring instruments, 8. Mechanism, 47, 180. Medical batteries, 99. Mercury, 63, 169. Metal base, 73. Mica, 186. Microphone, 118, 119, 120. Millimeter, 63. Minus, 34. Minus sign, 21. Morse code, 76. Motor, 7, 21, 27, 46, 47, 62, 82, 99, 150, 176, 180. Mouthpiece, 115. Mouthpiece rays, 188. Moving field, 117. Multiple, 168. Musical scale, 111. N Negative, 21, 35, 36, 68, 83, 86, 87, 94, 125, 151, 152, 154, 165, 177, 178, 179. Neutral, 125. Neutral plate, 84. Nickel, 136. Nickel plating, 132. Nitrate of silver, 62. Nitrogen, 126.

Non-conducting material, 90. Non-conductor, 164. Non-magnetic, 19. North pole, 20, 21, 22, 23, 25, 50, 54, 156. Number plate, 75. N-ray, 188. O Ohms, 60, 63. Ohms, international, 63. Ohms law, 7. Operator, 95, 118. Oscillating, 99, 105. Osmium, 169. Oxides, 125. Oxidizing, 183. Oxygen, 35, 123, 125, 126, 128, 129, 169. P Packing ring, 124. Paraffine, 56, 100, 101, 102. Paraffine wax, 86. Parallel, 87, 88, 89. Parallel switch bar, 67. Parallel wires, 28, 49. Partition, 124. Peon, 13. Percolate, 128. Periodicity, 159. Periods of alternations, 149. Permanent, 18, 19, 50. Permanent magnet, 25, 38, 46, 50, 172. Phase, 19. Phenomenon, 27, 65. Photograph, 186. Physical, 21. Pile, voltaic, 33. Pipe, 61. Pitchblende, 186. Pivot pin, 53. Pivotal, 22. Plane, 13. Plate, 57, 93. Plate, contact, 67, 68, 79. Plate, copper, 33, 35, 58, 67. Plate, negative, 84. Plate, number, 75. Plate, positive, 84, 88. Plate, zinc, 33. Platinum, 13, 57, 137. Pliers, 14. Plus sign, 21, 24. Pointer, 53. Polarity, 154, 177, 178, 179. Polarization, 35. Pole, north, 20, 21, 22, 23, 25, 50, 54, 156.

Pole piece, 40, 42. Pole, south, 20, 21, 22, 25, 50, 54, 156. Poles, 177, 179. Polonium, 186. Porcelain, 86. Porous, 85. Positive, 4, 21, 25, 36, 40, 68, 83, 86, 87, 94, 123, 125, 151, 152, 153, 155, 165. Post, binding, 52, 71. Potentiality, 105, 109. Power, 38, 186. Power, candle, 89, 139. Precipitate of lead, 83, 85. Precision, 7. Pressure, 87. Primary, 35, 62, 98, 134, 142, 159, 184. Primary battery, 7, 99. Primary circuit, 99. Primary coil, 106, 109. Prime conductor, 6. Projected, 185. Propagated, 105, 185. Properties, 55. Purification, 123, 128. Purifier, 126, 131. Push button, 65, 68, 69, 70, 76, 79. Q Quantity, 55, 60, 61, 138. Quartz, 186. R Radio-activity, 186. Radium, 184, 185, 187, 188. Ratchet drill, 13. Reaction, 148. Receiver, 12, 90, 97, 121, 122. Receiving station, 109. Rectangular, 69. Rectifiers, 146. Red lead, 83, 84. Reel, 13. Reflected, 185. Refraction, 185. Refractory, 182. Register, 57. Removable, 54. Removable cap, 73. Repel, 20. Repulsion, 21, 128. Reservoir, 61, 62. Resiliency, 99. Resistance, 7, 36, 37, 60, 63, 99, 135, 136, 137, 138, 140, 141, 156, 157, 163, 166, 168. Resistance bridge, 7. Resistance, external, 37. Resistance, internal, 37. Rheostat, 7. Reversed, 20, 50, 153.

Reversible, 163. Reversing, 176. Reversing switch, 67. Revolubly, 46. Revolve, 179. Revolving, 177. Roentgen rays, 184. Roentgen tube, 187. Rotation, 149. Rubber, 40, 46, 77, 115, 126, 130, 138. S Sad-irons, 13. Saline, 133. Sanitation, 12. Saturated, 85. Screw, 15. Screw, binding, 65, 66. Screw-driver, 14. Screw, set, 72. Sealing wax, 53. Secondary, 62, 98, 105, 158, 159, 160. Secondary circuit, 99. Secondary coil, 107, 108. Self-induction, 149, 156. Sender, 90, 97. Sending apparatus, 106. Sending key, 90. Separately excited, 46. Series-wound, 47. Severed magnet, 20. Sewage, 12. Shaft, 30. Shears, 14, 17. Shellac, 40. Shunt-wound, 47. Signal, 118. Silver, 19, 63, 125. Silver nitrate, 62. Socket, 54, 139. Soldering, 14. Soldering iron, 17. Solution, 55, 57, 62, 63, 84, 86, 133, 134, 142. Sounder, 90, 92, 95, 96. Sounding board, 119. Source, charging, 83. South pole, 20, 21, 22, 25, 50, 54, 156. Spark gap, 102, 106. Spark jump, 99. Spring finger, 69. Square, 14, 17. Standard, 62, 63. Station, 94, 95, 117, 122. Steel, 18, 19. Steel magnet, 53. Sterilized, 12. Stirrup, 75. Stock bit, 13.

Stock contact, 121. Storage, 82. Storage battery, 107. Storing, 82. Substances, 135. Sulphate, 55, 128, 133. Sulphur, 19. Sulphuric acid, 31, 84. Sulphuric acid voltameter, 55, 57. Superstition, 171, 173. Surging, 153, 154. Swinging magnet, 53. Swinging switch blade, 67. Switch blades, 66. Switches, 65, 66, 70, 77, 78, 90, 117. Switches, bar, 65, 68, 90, 91. Switches, bar, parallel, 67. Switches, heart-shaped, 78. Switches, piece, 77. Switches, reversing, 67. Switches, sliding, 67, 80. Switches, terminal, 8. Switches, two-pole, 65. System, circuiting, 79. T Tail-piece, 16. Tantalum, 169. Telegraph, 11, 90, 96. Telegraph key, 106. Telegraph sounder, 108, 109. Telegraphing, 94. Telephone, 12, 110, 113, 117, 118, 119, 120. Telephone circuit, 118. Telephone connections, 116. Telephone hook, 122. Temperature, 56, 88, 134, 161, 170. Tension, high, 38, 102, 184. Tension, low, 38, 98, 102, 179. Terminal, 31, 34, 35, 40, 48, 82, 86, 93, 95, 107, 116, 121, 122, 151, 152, 153, 154, 156. Terminal knob, 31. Terminal, secondary, 102. Terminal switch, 81. Theoretical, 160. Therapeutics, 187. Thermo-electric couples, 146. Thermo-electricity, 135. Thermometer, 56. Thorium, 169, 186. Thunderbolt, 171, 173. Tin, 136. Tinfoil, 31, 101. Tools, 11, 13, 17. Torch, brazing, 17. Transformer, 145, 146, 158, 159, 180, 182.

Transformer, step-down, 182. Transmission, 38, 187. Transmit, 63, 95, 157. Transmitter, 12, 120, 121, 122, 123. Transverse, 16, 52. Transversely, 43. Trigger, 75. Tripod, 31. Tubular, 44, 45. Two-pole switch, 65. U Ultra-violet, 185. Uranium, 186. V Vacuum, 184. Vapor lamps, 169. Velocity, 60, 73. Vertical armature, 75. Vibration, 110, 111, 113. Vibratory, 110. Vise, 13. Voltage, 37, 38, 60, 61, 62, 63, 87, 88, 99, 147, 154, 165, 180, 182. Voltage, high, 158. Voltaic, 29, 32. Voltaic pile, 33. Voltameter, 7, 58, 88. Voltameter, sulphuric, acid, 55, 57. Volts, 60, 62, 87, 89, 132, 158, 159. W Water, 123, 138, 144. Water power, 142. Watts, 60, 61, 160. Wave lengths, 104, 110. Weight, 49. Welding, 13, 182. Winding, 18, 40, 47, 58, 159, 196. Winding reel, 14. Window connection, 76. Window frame, 78. Wire, 6, 18, 21, 26, 28, 156. Wire, circuiting, 79. Wire coil, 40. Wire lead, 70. Wire, parallel, 28, 49. Wireless, 12. Wireless telegraphy, 103, 104, 184.

Wiring, 80. Wiring, window, 77. Workshop, 11, 17. Wound, compound, 48. Wound-series, 47. Wound-shunt, 47. X X-ray, 184, 185, 187, 188. Z Zinc, 17, 34, 35, 85, 135. Zinc plates, 33.