Articles from The Nineteenth Century in Print: Periodicals collection (Library of Congress/Cornell University Library). Put "haskell; (negro) spirituals," "higginson; (negro) spirituals," or "cable; (creole) slave songs" into the search box.

60a. Marion Alexander Haskell, "Negro Spirituals." The Century; a popular quarterly, vol. 58, issue 4, Aug. 1899, pp. 576-581.

60b. T.W. Higginson, "Negro Spirituals." The Atlantic Monthly, vol. 19, issue 116, June 1867, pp. 685-694. [the original page images]

60c. George W. Cable, "Creole Slave Song." The Century; a popular quarterly, vol. 31, issue 6, Apr. 1886, pp. 807-828.

Masato