This scrapbook covers the period January-December 1884. 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 ore separators, chemical stock printers, and telephones. Many of the entries contain notes by Edison to Richard N. Dyer, his patent attorney. The name of Edward C. Rowland, Edison's patent draftsman, appears as a witness on many of the documents. The case number of Edison's patent application has been written on some of the items. Courtesy of Thomas Edison National Historical Park.