Part Of: Notebook Series -- Notebooks by Edison

[NA015-F] N-87-12-10.1 (1887-1889)

This notebook covers the period December 1887-November 1889. All entries are by Edison. The book contains drawings and several long notes relating to filament experiments. There are also phonograph drawings; notes on battery solutions; and notes, drawings, and cost calculations regarding ore milling and hydroelectric power production at Niagara Falls. On the inside back cover is a list of points to include in an electric railway caveat. The pages are unnumbered. Approximately 120 pages have been used.

Courtesy of Thomas Edison National Historical Park.

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