The one dated entry in this notebook is from March 1896. At the beginning of the book is a list by Edison regarding various substances to be used in x-ray fluorescence experiments. There is also a longer list of compounds, nos. 130-1298, compiled by Edison and an unidentified experimenter, probably relating to x-ray experiments.The pages are unnumbered, and the book has been used in both directions. Several pages have been removed from the book. Approximately 50 pages have been used.

Courtesy of Thomas Edison National Historical Park.