I have read the MS. of your "A-B-C of Electricity," and find that the statements you have made therein are correct. Your treatment of the subject, and arrangement of the matter, have impressed me favorably.

Yours truly,

THOS. A. EDISON


[CONTENTS]

CHAP. PAGE
Introduction To New Edition[viii]
Preface[x]
I. [1]
II.Definitions[3]
III.Magnetism[16]
IV.The Telegraph[23]
V.Wireless Telegraphy[33]
VI.The Telephone[40]
VII.Electric Light[54]
VIII.Electric Power[87]
IX.Batteries[95]
X.Conclusion[127]

INTRODUCTION TO NEW EDITION