This notebook was used by Archie D. Hoffman during April 1916 for experiments on disk "transfers" performed on orders from Edison. The experiments have "E" numbers that correspond to the experiment numbers in N-16-03-07 and N-16-04-27, Notebooks by Edison and Other Experimenters -- Disc Record Books, Nos. 1-26. The notes provide information on the preparation of the blank, such as varnish details, along with details of transfer schedules, such as temperatures, times, and pressures. The pages are unnumbered. Approximately 30 pages have been used. Courtesy of Thomas Edison National Historical Park.