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


TRANSCRIBER'S NOTES

Silently corrected simple spelling, grammar, and typographical errors.