This notebook was used by Edison during July and November 1904. It contains notes and drawings regarding storage battery experiments. Included are items relating to the discharge of gas by the cells, the seals on the outer container of each cell, the loading of iron powder in the grid pockets, and the composition of the nickel used in the cells. The pages are unnumbered. Approximately 25 pages have been used.
Courtesy of Thomas Edison National Historical Park.