12. Poems, undated Box 1, Folder 15-16 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library James Gates Percival collection, 1800-1944, bulk 1820-1850…
13. Youthful verse, undated Box 1, Folder 17 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library James Gates Percival collection, 1800-1944, bulk 1820-1850…
14. Aeschylus' Prometheus Boundleaves, 1823, undated Box 1, Folder 18 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library James Gates Percival collection, 1800-1944, bulk 1820-1850…
15-16. Phi Beta Kappa poem, Yale College, with a fair copy in Percival's hand, 1825 Box 1, Folder 19 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library James Gates Percival collection, 1800-1944, bulk 1820-1850…
17. Athelstan, A Tragedy, undated Box 1, Folder 20 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library James Gates Percival collection, 1800-1944, bulk 1820-1850…
18. Lord Byron's Farewell, undated Box 1, Folder 21 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library James Gates Percival collection, 1800-1944, bulk 1820-1850…
19. God, undated Box 1, Folder 22 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library James Gates Percival collection, 1800-1944, bulk 1820-1850…
1. Clio I: Essay on the Imaginative Mind and original manuscript of long poem beginning "The world is full of poetry...", undated Box 1, Folder 1 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library James Gates Percival collection, 1800-1944, bulk 1820-1850…
200. On the Art of Printing and the Freedom of the Press, undated Box 2, Folder 65 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library James Gates Percival collection, 1800-1944, bulk 1820-1850…
201. The Atheneum, undated Box 2, Folder 66 Bookmark Collection Context Yale University -Beinecke Rare Book and Manuscript Library James Gates Percival collection, 1800-1944, bulk 1820-1850…