INDUCTION COILS How to Make, Use, and Repair Them

INCLUDING

RUHMKORFF, TESLA, AND MEDICAL COILS, ROENTGEN RADIOGRAPHY, WIRELESS TELEGRAPHY, AND PRACTICAL INFORMATION ON PRIMARY AND SECONDARY BATTERY

BY H. S. NORRIE (NORMAN H. SCHNEIDER)

SECOND EDITION, REVISED AND MUCH ENLARGED

NEW YORK: SPON & CHAMBERLAIN, 12 Cortlandt St.

LONDON: E. & F. N. SPON, Ltd., 125 Strand 1901

Entered, according to Act of Congress, in the year 1896 Re-entered for Copyright in 1901 By SPON & CHAMBERLAIN in the office of the Librarian of Congress, Washington, D. C.

BURR PRINTING HOUSE, NEW YORK, N. Y., U. S. A.

ERRATA.

Page 55. Should read, "Cords being attached to binding posts Nos. 1 and 2 are in circuit with the Secondary Coil only. When at Nos. 2 and 3 they receive the induced current or extra current in the Primary."

Index. "Tesla coil, descriptive," should read "Tesla coil, disruptive."