C.
- Cable, many stranded, [174]
- Case for bell action, [88]
- Cells in parallel, [57]
- series, [53]
- Charging fluid, recipes, [48]
- Fuller, [49]
- Circuits, closed, [52], [118]
- Of bells complete in house, [168]
- For signalling, [167]
- In both directions, [168]
- Circuits of bells with Morse key, [165]
- In parallel, [161]
- Series, [162]
- With relay, [164]
- Single bell and wire, [159]
- Earth, [160]
- Two pushes, [161]
- Push and pull, [161]
- Open, [52]
- Closed circuit system, [118]
- Code for signalling, [130]
- Coil spring, [108]
- Conductors, [3]
- Connecting up, [144], [159]
- Contacts, burglar alarm, [113]
- Door, [116]
- Drawer, [121]
- Floor, [113]
- For closed circuits, [121]
- Mackenzie's humming, [113]
- Shop door, [116]
- Till, [121]
- Watch alarm, [124]
- Window sash, [116]
- Corrugated carbons, [41]
- Creeping in cells, [43]
- To remedy, [44]
- Callow's attachment, [99]
- Current, [54]
- To ring bell, [145]
D.
- Daniell's cell, [29]
- Action in, [29]
- Deflection of needle, [9], [11]
- Detector or galvanometer, to make, [178]
- Detent lever, [94]
- Door contact, [116]
- Dotting action, [116]
- Drawing out plans, [169]
- Dynamo, [15]
- Armature, [16]
- Brushes, [17]
- Commutator, [17]
- Dynamo, Cumulative effects, [17]
- Field magnets, [16]
E.
- Earth, [52]
- Plate, [53]
- Return, [153]
- Electric bell, action of, [81]
- Armature, [74]
- Base, [61]
- Bobbins, [67]
- Contact screw, [75]
- Continuous, [92]
- Circular bell, [106]
- Gong, [77]
- How to make, [60]
- In lifts, [171]
- Ships, [170]
- Jensen's, [101]
- Joining E. M. wire, [73]
- Magnets, [63]
- Magneto, [174]
- Mining, [106]
- Paraffining, [69]
- Platinum tip, [76]
- Putting together, [78]
- Single stroke, [91]
- Spring, [74]
- Thorpe's, [100]
- Trembling, [81], [90]
- Winding wire on, [71]
- Wire for, [69]
- Trumpet, [107]
- Electricity, sources of, [2]
- Electrodes, [26]
- Electro-motive force, [51]
- Electron, [1]
- E.M.F., [51]
- Excitation, [6]
F.
- Faults to detect, [182]
- Fire alarms, [123]
- Floor contacts, [113]
- Frost alarms, [121]
- Fuller charging, [49]
G.