Alternating Current Motors, Transformers, Converters, Rectifiers.

ELECTRICAL GUIDE, NO. 7

Alternating Current Systems, Circuit Breakers, Measuring Instruments.

ELECTRICAL GUIDE, NO. 8

Alternating Current Switch Boards, Wiring, Power Stations, Installation and Operation.

ELECTRICAL GUIDE, NO. 9

Telephone, Telegraph, Wireless, Bells, Lighting, Railways.

ELECTRICAL GUIDE, NO. 10

Modern Practical Applications of Electricity and Ready Reference Index of the 10 Numbers.

Theo. Audel & Co., Publishers 72 FIFTH AVENUE, NEW YORK