During the Harlem Renaissance, many literary works concentrated on celebrating African American heritage. However, many other writers also began concentrating on the darker theme of naturalism. Nella Larsen’s Quicksand illustrates many elements of this movement. These include a biological determinism, where man is conceived of as controlled by his primitive animal instincts and a sociological determinism, whereby the weak are destroyed and the strong survive in a world of struggle and chance. Helga Crane, Larsen’s protagonist in Quicksand, illustrates the elements of both biological and sociological determ