The electric motor and the transmission of power
A technical handbook on electric motors and power transmission by Edwin J. Houston and Arthur E. Kennelly, published in New York by McGraw in 1906 for engineers and electrical students. Wood-engraved and halftone figures show field magnets, armatures, commutators and bench-mounted machines, many cut away and lettered, useful for hatched metal surfaces, cross-sections and labelled diagram layouts.
