This notebook covers the period February-April 1907. It was used by Edison, Olav Berg, and Ludwig F. Ott as a log to record the preparation of iron compounds, numbers 3427- 4507, for use in storage battery endurance tests. The front cover is labeled "Iron 3427 to 4507 Muckers--." The pages are unnumbered. Approximately 210 pages have been used.
Only the sections of the book with substantive Edison notes and marginalia have been selected.
Courtesy of Thomas Edison National Historical Park.