The dated entries in this notebook are all from December 1889. At the beginning of the book are eight drawings by Charles Batchelor regarding the electric railway. The remainder of the book was used by an unidentified experimenter, probably during 1888, as a shelf list for laboratory equipment and chemicals. The spine is labeled "64." The pages are unnumbered. Approximately 40 pages have been used.

Only the electric railway drawings have been selected.

Courtesy of Thomas Edison National Historical Park.