Alternating-current machinery: a practical treatise on alternating-current principles and systems, commercial types of alternators, synchronous motors, transformers, converters, induction motors, switchboard and station appliances, etc.
A 1912 correspondence-course textbook on alternating-current machinery, issued by the American School of Correspondence in Chicago with William Esty, written for working electricians and engineering students. Line diagrams of windings, pole arrangements and phase circuits sit alongside labelled halftones of meters and machine interiors, offering schematic symbols, callout leader lines and cutaway views of early electrical hardware.
