These reminiscences were selected from box 14 in Series 1 of the William J. Hammer Collection.They consist of approximately 70 pages of fragmentary notes. Most of the notes were assembled together in a three-ring binder, but there are also a few loose sheets. The reminiscences are not in strict chronological order, and many of the notes consist of disconnected paragraphs summarizing topics that are sometimes discussed more fully elsewhere. The first page bears the following inscription: "Mostly notes about Edison[.] Some notes of W. J. Hammer's work for Edison[.] Also re experiences abroad Maxim, Santos Dumont etc." The next several pages contain a list of lantern slides, brief reminiscences, and two pages of Edison aphorisms including his definition of genius as "1% Inspiration & 99% perspiration." These are followed by several sets of overlapping notes regarding his work at the Menlo Park laboratory and the Edison lamp factory, one of which bears the title "Reminiscences of Menlo Park N.J. Laboratory of Thomas A. Edison." Some of the anecdotes are of a humorous character, such as a recounting of "tricks [practical jokes] at Menlo Park" and a discussion of Edison's "pet names for his assistants."