1．ELECTRICITY 1
2．ELECTRICITY AT REST 3
3．ELECTRICITY ON THE MOVE 9
4．WHAT ELECTRICITY IS 14
5．MAGNETISM 18
6．MAGNETISM AND ELECTRIC CURRENTS 23
7．ELECTRICITY AND CHEMISTRY 30
8．AMPS,VOLTS,AND OHMS 34
9．ELECTRIC POWER 39
10．MEASURING ELECTRIC CURRENTS 45
11．HOW ELECTRIC PowER IS GENERATED 51
12．ALTERNATING CURRENT（A.C.） 57
13．POWER STATIONS 67
14．HOW ELECTRIC PoWER IS DISTRIBUTED 72
15．ELECTRIC MOTORS 81
16．ELECTRIC LIGHTING AND HEATING 88
VOCABULARY 94