Edison: His Life and Inventions by Frank Lewis Dyer and Thomas Commerford Martin

9. Educational purposes; such as preserving the explanations made by a

teacher, so that the pupil can refer to them at any moment, and spelling or other lessons placed upon the phonograph for convenience in committing to memory.

← Previous Back to Home Next →

Chapter 1 Ch.1
INTRODUCTION Ch.2
INTRODUCTION Ch.3
CHAPTER I Ch.4
CHAPTER II Ch.5
CHAPTER III Ch.6
CHAPTER IV Ch.7
1890. The expiration of the leading Bell telephone patents, five years Ch.8
CHAPTER V Ch.9
CHAPTER VI Ch.10
CHAPTER VII Ch.11
CHAPTER VIII Ch.12
CHAPTER IX Ch.13
introduction. There he made the acquaintance of Professor Tyndall, Ch.14
CHAPTER X Ch.15
1. Letter writing and all kinds of dictation without the aid of a Ch.16
2. Phonographic books, which will speak to blind people without effort Ch.17
5. The 'Family Record'--a registry of sayings, reminiscences, etc., by Ch.18
7. Clocks that should announce in articulate speech the time for going Ch.19
8. The preservation of languages by exact reproduction of the manner of Ch.20
9. Educational purposes; such as preserving the explanations made by a Ch.21
10. Connection with the telephone, so as to make that instrument an Ch.22
introduction from Mr. Jay Gould, who then controlled the Union Pacific, Ch.23
CHAPTER XI Ch.24
CHAPTER XII Ch.25
introduction of his lighting system, when he spent a large part of his Ch.26
CHAPTER XIII Ch.27
CHAPTER XIV Ch.28
1882. Outside of Menlo Park this was the first regular station for Ch.29
INTRODUCTION OF THE EDISON ELECTRIC LIGHT Ch.30
CHAPTER XVI Ch.31
CHAPTER XVII Ch.32
CHAPTER XVIII Ch.33
CHAPTER XIX Ch.34
CHAPTER XX Ch.35
introduction of some bold and revolutionary methods and devices, have Ch.36
CHAPTER XXI Ch.37
CHAPTER XXII Ch.38
introduction. Nevertheless, he accepted the principle as valuable, and Ch.39
CHAPTER XXIII Ch.40
introduction of the underground Edison system in New York made an appeal Ch.41
CHAPTER XXIV Ch.42
CHAPTER XXV Ch.43
CHAPTER XXVI Ch.44
CHAPTER XXVII Ch.45
CHAPTER XXVIII Ch.46
introduction of the light was carried on with such strenuous and Ch.47
CHAPTER XXIX Ch.48
INTRODUCTION TO THE APPENDIX Ch.49
Chapter XXI, it will be unnecessary to repeat it here. Suffice it to say Ch.50
1. As to the additional reference letters, I is a condenser J the source Ch.51
10. Duration on account of its dependability. 11. Its high practical Ch.52