This pocket notebook contains two dated entries from February 1907. It was used by Edison for notes on experiments and other tasks to be performed. Many of the proposed experiments pertain to storage batteries, phonographs, and related chemical research. Included are entries describing groups of test cells, outlining chemical experiments with tungsten and tungstate compounds, and remarking upon a "new stuff" made by Jonas Walter Aylsworth (possibly a phenolic resin). There is also a drawing of a phonograph reproducer, with a notation that it was given to patent attorney Frank L. Dyer. Among the employees mentioned in relation to experimental work or business matters are Thomas D. Greenley, Otto Groethe, Emil Herter, Frederick P. Ott, John F. Ott, Ludwig F. Ott, and Herman Wolke. The front cover is stamped "From W. D. Andrews Talking Machines, Bicycles, Athletic Goods, Syracuse, N.Y." and "Thomas A. Edison." The pages are unnumbered. Approximately 40 pages have been used.