Large 12mo, Cloth, with Special Cover Design, $1.00

Sold by Booksellers generally, or sent postpaid upon receipt of price.

FREDERICK J. DRAKE & CO., Publisher.
211-213 East Madison St., CHICAGO

ALL TECHNICAL TERMS AVOIDED

Practical Telephone Hand Book and Guide to Telephonic Exchange

HOW TO CONSTRUCT AND MAINTAIN TELEPHONE LINES

By T. S. BALDWIN, M. A. Illustrated.

Containing chapters on “The Use of the Telephone, Series and Bridging phones, Line Construction, Materials to be used, Locating and Correction of Faults in Instruments and Lines.”