Cover

pdf iconDownload PDF

pp. C-C

Title Page, Frontispiece, Copyright, Dedication

pdf iconDownload PDF

pp. i-x

Contents

pdf iconDownload PDF

pp. xi-xii

Calendar of Documents

pdf iconDownload PDF

pp. xiii-xxiv

List of Editorial Headnotes

pdf iconDownload PDF

pp. xxv-xxvi

read more

Preface

pdf iconDownload PDF

pp. xxvii-xxx

When Thomas Edison moved his family, a few co-workers, and his laboratory equipment from Newark to Menlo Park at the end of March 1876, he traded a city bustling with manufacturing activity and skilled workers for a railroad stop in pastoral New Jersey. Yet for all his apparent isolation at Menlo...

Chronology of Thomas A. Edison, April 1876–December 1877

pdf iconDownload PDF

pp. xxxi-xxxvii

Editorial Policy

pdf iconDownload PDF

pp. xxxviii-xxxix

Editorial Symbols

pdf iconDownload PDF

pp. xl-xl

List of Abbreviations

pdf iconDownload PDF

pp. xli-2

read more

1 April–June 1876: (Docs. 738–757)

pdf iconDownload PDF

pp. 3-58

As a result of a lawsuit brought by a former Newark landlord, Edison had decided in late 1875 to purchase land and build his own laboratory.1 He bought land and a house in Menlo Park, a whistlestop on the New York-Philadelphia line, and built a laboratory during the winter of 1876.2 Edison and a...

read more

2 July–September 1876: (Docs. 758–797)

pdf iconDownload PDF

pp. 59-146

Edison spent the summer of 1876 working hard in his new laboratory. His principal concerns were his acoustic transfer telegraph system and experiments with his electromotograph. Spurred by Alexander Graham Bell's epochal demonstration at the Centennial Exhibition, Edison also undertook new...

read more

3 October–December 1876: (Docs. 798–833)

pdf iconDownload PDF

pp. 147-200

During the early fall of 1876 Edison and his staff concentrated their efforts on practical tests of acoustic transfer technology. They demonstrated the system to Western Union and at the end of December Edison began negotiating a new financial arrangement with Western Union on the strength of his...

read more

4 January–March 1877: (Docs. 834–879)

pdf iconDownload PDF

pp. 201-286

Edison began the new year with three extensive series of chemical experiments. The first grew out of new etheric force experiments involving an electrochemical cell. As Edison substituted various solutions in the cell he investigated in turn the effect on the etheric spark, the polarization of the electrodes,...

read more

5 April–June 1877: (Docs. 880–951)

pdf iconDownload PDF

pp. 287-410

Edison and the laboratory staff—minus machinist Charles Wurth, who left in April1—worked intensively on two projects under his new contract with Western Union—telephone technology and his sextuplex system of multiple telegraphy. By the end of June, Edison had a musical telephone...

read more

6 July–September 1877: (Docs. 952–1075)

pdf iconDownload PDF

pp. 411-581

The largest part of Edison's summer was devoted to the telephone. With Bell's telephone showing increasing commercial promise in Boston, Western Union became more concerned about establishing a foothold in the market. Although the company was also supporting Edison's work on his embossing...

read more

7 October–December 1877: (Docs. 1076–1163)

pdf iconDownload PDF

pp. 582-690

Edison and his staff worked intensely to improve his commercial telephone in the last quarter of 1877. They spent hundreds of hours in the laboratory, redesigning the instruments they had and creating new ones, and they frequently traveled to lower Manhattan to test their telephones on working...

Appendix 1. Edison's Autobiographical Notes

pdf iconDownload PDF

pp. 691-697

Appendix 2. Charles Batchelor's Recollections of Edison

pdf iconDownload PDF

pp. 698-701

Appendix 3. Edison's U.S. Patents, April 1876–December 1877

pdf iconDownload PDF

pp. 702-704

Bibliography

pdf iconDownload PDF

pp. 705-710

Credits

pdf iconDownload PDF

pp. 711-712

Index

pdf iconDownload PDF

pp. 713-727