This scrapbook covers the period January-December 1882. The entries are by Edison and relate primarily to electric lighting. Included are notes and drawings concerning lamps, generators, meters, regulators, electric power distribution, and other parts of the system. There is also some material pertaining to electric railways and to mining lamps. Many of the entries contain notes by Edison to Richard N. Dyer, his patent attorney, and to Samuel D. Mott, his patent draftsman. The case number of Edison's patent application has been written on some of the items. Some of the notes and drawings at the beginning of the book were dated by Edison's patent attorney, Henry W. Seeley. These documents bear dates of October or November 1882, the date that Seeley received them from Edison. Courtesy of Thomas Edison National Historical Park.