Charles F. Heinrichs, an electrical engineer, describes his investigations and conclusions in cases of accidental electrocution in New York City.

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A sweeping history of the electric light revolution and the birth of modern America The late nineteenth century was a period of explosive technological creativity, but more than any other invention, Thomas Edison’s incandescent light bulb marked the arrival of modernity, transforming its inventor into a mythic figure and avatar of an era. In The Age of Edison, award-winning author and historian Ernest Freeberg weaves a narrative that reaches from Coney Island and Broadway to the tiniest towns of rural America, tracing the progress of electric light through the reactions of everyone who saw it and capturing the wonder Edison’s invention inspired. It is a quintessentially American story of ingenuity, ambition, and possibility in which the greater forces of progress and change are made by one of our most humble and ubiquitous objects.

In September 1878, Thomas Alva Edison brashly—and prematurely—proclaimed his breakthrough invention of a workable electric light. That announcement was followed by many months of intense experimentation that led to the successful completion of his Pearl Street station four years later. Edison was not alone—nor was he first—in developing an incandescent light bulb, but his was the most successful of all competing inventions. Drawing from the documents in the Edison archives, Robert Friedel and Paul Israel explain how this came to be. They explore the process of invention through the Menlo Park notes, discussing the full range of experiments, including the testing of a host of materials, the development of such crucial tools as the world's best vacuum pump, and the construction of the first large-scale electrical generators and power distribution systems. The result is a fascinating story of excitement, risk, and competition. Revised and updated from the original 1986 edition, this definitive study of the most famous invention of America's most famous inventor is completely keyed to the printed and electronic versions of the Edison Papers, inviting the reader to explore further the remarkable original sources.

Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-59. Cf. Index to v. 1-120 of the Journal, p. [415]