A revised version of a portion of the syllabus appears in the Annual Report of the Board of Regents of the Smithsonian Institution for 1856 (Washington, D.C.: 1857 ...
Goode, 1897, page 834, gives date as February 25, 1847. Goode, George Brown, ed. The Smithsonian Institution, 1846-1896, The History of Its First Half Century ...