Critical observations on the sixth book of the Æneid, Edward Gibbon. Critical observations on the sixth book of the Æneid Gibbon, Edward, 1737-1794. ,56p. ; 8⁰. London : originally printed 1770. Reprinted, 1794. Anonymous. By Edward Gibbon. Reproduction of original from the British Library. Norton, 15 English Short Title Catalog, ESTCT79684. Electronic data. Farmington Hills, Mich. : Thomson Gale, 2003. Page image (PNG). Digitized image of the microfilm version produced in Woodbridge, CT by Research Publications, 1982-2002 (later known as Primary Source Microfilm, an imprint of the Gale Group).