This diary, which covers the period 12-21 July 1885, is the only known volume kept by Edison specifically to record thoughts and feelings of a personal nature. Included are his observations on art, literature, and religion, along with comments about his dreams, his health, and his feelings toward his future wife, Mina Miller, and toward his daughter, Marion ("Dot"). Other entries discuss Edison's visits to Woodside Villa, the home of Ezra T. Gilliland near Winthrop, Massachusetts.