S
Saw-tooth arrester [296]
Selective party-line systems [238]
broken-line method [261]
classification
broken-line systems [239]
harmonic systems [238]
polarity systems [238]
step-by-step systems [239]
harmonic method [248]
polarity method [239]
step-by-step method [259]
Self-induction [54]
Signal code [235]
Signaling, method of [115]
Silk and cotton insulation [155]
Single electrode [64]
Single-pole receiver [81]
Sneak-current arresters [305]
Solid-back transmitter [66]
Sound
characteristics of [19]
loudness [20]
pitch [20]
timbre [21]
Standard cell [113]
Step-by-step lock-out system [67]
Step-by-step method of selective signaling [259]
Subscribers' station protectors [312]
Switchboard cords [349]
Switchboard plugs [348]
Switchboard transmitter [79]
Symbols
battery [114]
condenser [184]
generator [127]
hook switch [141]
impedance coil [165]
induction coil [171]
receiver [91]
repeating coil [171]
ringer [131]
ringing and listening key [327]
transmitter [79]
T
Table
condenser data [184]
copper wire [151]
German silver wire — 18 per cent [174]
German silver wire — 30 per cent [175]
metals, behavior of, in different electrolysis [95]
signal code [235]
specific inductive capacities [181]
temperature coefficients [172]
transmission distances, limiting [57]
winding data for insulating wires [160]
Tandem differential electromagnet [152]
Telegraph sounder [30]
Telephone currents, measurements of [36]
electromagnetic method [37]
thermal method [37]
Telephone exchange, features of [317]
districts [318]
subscribers' lines [318]
switchboards [319]
toll lines [318]
trunk lines [318]
Telephone lines [47]
conductivity of conductors [49]
electrostatic capacity [50]
inductance of circuit [54]
inductance vs. capacity [56]
insulation of conductors [56]
transmission [60]
Telephone sets [207]
classification of [208]
common-battery telephone [208]
magneto telephone [208]
wall and desk telephones [208]
common-battery [217]
desk [220]
hotel [219]
wall [219]
magneto [209]
circuits of
bridging [215]
series [212]
desk [211]
wall [209]
Temperature coefficients [172]
Thermal method of measuring telephone currents [37]
Timbre [21]
Toroidal impedance coil [165]
Toroidal repeating coil [170]
Transmission, ways of improving [60]
Transmitters [63]
acousticon [77]
Automatic Electric Company [72]
carrying capacity [76]
conventional diagram [79]
electrode [75]
arrangement of [63]
multiple [65]
single [64]
granular carbon [66]
Kellogg [70]
materials [63]
Monarch [73]
packing [75]
sensitiveness [77]
switchboard [79]
symbols [79]
variable resistance [63]
Western Electric solid-back [66]
U
Under-tuned ringer [252]
V
Vacuum arrester [299]
Variable resistance [63]
Vibrating bell [40]
Visible signals [43]
electric lamp [44]
electromagnetic [43]
Volta [92]
Voltaic cell [92]
amalgamated zincs [97]
difference of potential [94]
local action [96]
polarization [96]
theory [93]
W
Wall telephone hooks [135]
Dean [137]
Kellogg [135]
Western Electric [136]
Western Electric
air-gap arrester [298]
desk stand hook [138]
drop and jack [343]
receiver [82]
ringer [128]
solid-back transmitter [66]
station arrester [313]
wall telephone hook [136]
White transmitter [66]
Wire gauges [154]