THE RADIO DETECTIVES
BY
A. HYATT VERRILL
AUTHOR OF “THE DEEP SEA HUNTERS,” “ISLES OF SPICE
AND PALM,” “THE BOOK OF THE MOTOR BOAT,” ETC.
D. APPLETON AND COMPANY
NEW YORK :: 1922 :: LONDON
COPYRIGHT, 1922, BY D. APPLETON AND COMPANY
PRINTED IN THE UNITED STATES OF AMERICA