This notebook covers the period April-July 1880. It is a continuation of Menlo Park Notebook #25. All of the entries are by John W. Lawson and consist of notes and tables relating to meter experiments. A set of calculations relating to these experiments was also found in the book. These loose sheets have not been selected. The label on the front cover is marked "Meter Experiments." There are 284 numbered pages. Pages 20-39 contain skeleton tables that were never filled in. They have not been selected.
Blank pages: 1-3, 54-284. Courtesy of Thomas Edison National Historical Park.