Which Henry James novel was adapted into William Wyler's The Heiress?

William Wyler's 1949 film The Heiress was adapted from the 1880 novel Washington Square by Henry James.1

While the film was directly based on a play of the same name by Ruth and Augustus Goetz, that play itself was an adaptation of James's novel, which depicts the strained relationship between a young woman named Catherine Sloper and her domineering father.21