These are books, most of which were published in the late 19th and early 20th century, that are discussed in Chapter 7 of "From Puritanism to Postmodernism: A History of American Literature". Chapter 7 is within the section "Native and Cosmopolitan Crosscurrents: From Local Color to Realism and Naturalism".
This is the 5th instalment of a maximum of eleven. The instalments are being published in more or less reverse chronological order.