This notebook covers the period August-October 1881. The entries are by Francis Jehl and consist of notes and calculations relating to meter experiments. There are two labels on the front cover marked "Meters" and "Edison Machine Works Francis Jehl." The book contains 280 numbered pages. Pages 260-275 contain skeleton tables that were never filled in. They have not been selected.
Blank pages: 278-279. Courtesy of Thomas Edison National Historical Park.