Shades of Green offers a creative reimagining of early and antebellum American literary culture by exploring the complex web of relationships linking racial thought to natural science and natural imagery. The book charts a dynamic shift in both polemical and imaginative literature during the century before the Civil War, as scientific, artistic, and spiritual vocabularies regarding nature became increasingly important for authors seeking to mobilize public opinion against slavery or to redefine racial identity. Finseth argues that these vocabularies both liberated and constrained antislavery philosophy and, more broadly, that our understanding of race in early American literature must take the natural world into account. In doing this, Finseth fuses a cultural history of the period with fresh readings of such major figures as Ralph Waldo Emerson, Harriet Beecher Stowe, and Frederick Douglass.