Impure Solitude: Walden, or Life in the Network -- The Solitary Woman in the Garret: Race and Gender in Incidents in the Life of a Slave Girl -- Solitude in the Postal Age and Beyond: Melville's Dead Letters -- "Alone, I Cannot Be -": Dickinson's Invention of Modern Solitude -- The Solitude Electric: Techno-Utopianism in Telegraphic Literature