This notebook covers the period October 1903-November 1904. The book contains notes and drawings by Edison and an unidentified experimenter regarding x-ray experiments. Inserted into the book are several pages of notes pertaining to the x-ray work. Marginal notations indicate that some of this material was recopied into an unidentified "big book." The pages are unnumbered. Approximately 40 pages have been used.
Courtesy of Thomas Edison National Historical Park.