This letterbook covers the period February 1888-December 1891. Most of the correspondence is by various laboratory storekeepers such as Fred C. Devonald, Thomas Ebdell, Arthur W. Langford, and C. E. Sullivan. The letters pertain to the ordering of supplies and equipment for the West Orange laboratory. These routine items have not been selected. There are also letters by Edison, Charles Batchelor, William K. L. Dickson and Alfred O. Tate regarding various subjects, including ore milling, lamp and battery tests, and patent applications. Most of the selected documents were written by Dickson and deal with the kinetoscope. The front cover is labeled "Store Room Letters Feby 14/88." The book contains 478 numbered pages. Approximately 10 percent of the book has been selected.