This letterbook covers the period March-April 1894. Most of the correspondence is by Alfred O. Tate. Some of the letters relate to Edison's work on motion picture technology. Other documents pertain to Edison's phonograph and ore milling businesses. There are also a few items concerning his personal finances and his property at Menlo Park. One letter refers to Edison's patent on an electrolytic decomposition process. The front cover is marked "1894." The spine is labeled "Edison Letters From Mar. 8. 1894. To- ." The book contains 510 numbered pages and a partial index. Pages 74-510 are blank. Only 9 pages have been selected. Related documents for this time period can be found in LB-059. Courtesy of Thomas Edison National Historical Park.