A reprint of the nineteenth edition --published in 1909-- this book includes batteries, magnets, motors, bells, miscellaneous toys, dynamo construction, telegraph key, sounder, microphone, telephone receiver, and many more. A wonderful glimpse into the American society of 100 years ago.
A reprint of the nineteenth edition --published in 1909-- this book includes batteries, magnets, motors, bells, miscellaneous toys, dynamo constructio...
