This undated pocket notebook was used by Edison around 1888 for notes on proposed experiments. Included are entries relating to batteries, electric generators, and chemical experiments. The pages are unnumbered. Only 15 pages have been used.
Note: The images in this pocket notebook are quite small. They can be enlarged to a more readable size by using the "image zoom" feature of the Firefox browser. Click here to download the Firefox "image zoom" add-on. Right-click on the image to enlarge. Courtesy of Thomas Edison National Historical Park.