"Index of the Project Gutenberg Works of Thomas Wentworth Higginson" by Higginson is a compilation detailing the various works authored by Higginson, covering a wide range of genres including essays, narratives, and historical accounts, likely written during the late 19th century to early 20th century. The book serves as an index showcasing Higginson's literary contributions, exploring topics such as military life, women's rights, American literature, and historical explorations. The content of this compilation includes a diverse array of Higginson's writings such as "Malbone," a romance set in Oldport; "Army Life in a Black Regiment," which depicts the experiences of African American soldiers during the Civil War; and "Women and the Alphabet," a series of essays addressing women's education and societal roles. Additionally, Higginson explores American explorations from the Norse discoveries to Colonial America in "A Book of American Explorers." Each work contributes to a broader understanding of pivotal themes in American history and culture, making this index a valuable resource for those interested in Higginson's literary impact and the era's social issues. (This is an automatically generated summary.)