Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 692
e Is a plunge battery, compass—galva-nometer, solenoid, telephone receiver, electric lamp, plenty of wire andrnany^ other things you need to makeelectrical experiments. The instructionbook tells you how to perform all kindsof electric tricks. You can pay for this box from the profitsof your shows… … CATALOGUE FREE! PARENTS! This inexpensiveBet of electricalapparatus makesthe finest kind ofinstructive playfor your boy. Itteaches him theprinciples of elec-tricity, how toconstruct and de-velop the crea-tive faculties inthe proper di-rection. Our big. newelectrical gcyclopedia No. 20lis waiting…
Children's literature
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