INVENTORS AT WORK
Reading edition
Copyright by Park & Co., Brantford, Ontario.
PROFESSOR ALEXANDER GRAHAM BELL.
Inventors at Work With Chapters on Discovery
By George Iles Author of “Flame, Electricity and the Camera”
Copiously Illustrated
New York Doubleday, Page & Company 1907
Copyright, 1906, by George Iles Published October, 1906
All rights reserved, including that of translation into foreign languages, including the Scandinavian
TO MY FRIEND JOSEPHUS NELSON LARNED OF BUFFALO, NEW YORK