Vol. 4-5 have imprint: Carbondale : Southern Illinois University Press.Vol. 4 edited by Sculley Bradley; v. 5 edited by Gertrude Traubel.Includes indexes."Last will & testament of Walt Whitman in his own handwriting, properly witnessed, June 29, 1888" (folded facsim. mounted on cover, v. 1)1. March 28-July 14, 1888 -- 2. July 16, 1888-October 31, 1888 -- 3. November 1, 1888-January 20, 1889 -- 4. January 21-April 7, 1889 -- 5. April 8-September 14, 1889.Mode of access: Internet