This folder contains documents, primarily correspondence, covering a wide variety of subjects. Some of the material relates to personal matters. Also included are documents that deal with more than one subject, such as a letter about both the electric light and electric traction. Documents concerning subjects that do not fall under the main subject categories are also filed in this folder. Among the items are numerous letters from George P. Lathrop and several dozen pages of notes in Edison's hand pertaining to their collaboration on a science fiction novel.

More than 90 percent of the documents have been selected. The following categories of documents have not been selected: correspondence from the law firm of Eaton & Lewis regarding the transmittal of papers and bills and other routine legal matters; duplicate copies of selected documents.