Standard American electrician

A complete encyclopedia of electricity. I. A book of useful tables and practical hints for electricians, foremen, salesmen, estimators, contractors, architects and engineers. II. Practical diagrams and descriptions for all kinds of electrical construction work. III. Direct and alternating current motors, showing principles, construction, operation and maintenance. IV. Operating and testing manual, for men in charge of electrical apparatus, repair men, trouble men, lamp trimmers and electricians generally