[Electric engineering.]

International Library of Technology · 1902 · Scranton, International Textbook Co. · 366 pictures

A 1902 correspondence-course volume on electric engineering issued by the International Library of Technology in Scranton, Pennsylvania, for tradesmen studying at home. The plates are line-drawn wiring schematics, arc-lamp mechanisms, coils and transformers, with current-direction arrows, hatched pole pieces and italic letter keys that designers can lift as diagrammatic marks, arrow systems or annotated technical patterning.

Electrical engineering

Internet Archive · Boston Library Consortium · Public Domain Mark 1.0