Popular electricity in plain English
A 1908 Chicago popular science primer on electricity, written in plain English for general readers curious about the subject. Its pictures are line diagrams of a circuit with transformer and resistance coils, a suspended electric lamp fixture with ornate scrollwork, a close view of a carbon filament lamp, and a photograph of overhead wiring along a tunnel track. A designer could take clean technical line work, Edwardian ornament, and early electric lamp forms from them.
