Book digitized by Google from the library of the University of Michigan and uploaded to the Internet Archive by user tpb.
Vols. 11-20, 1840-1849 as ser. 2 v. 1-10; vols. 21-30, 1850-1859 as ser. 3 v. 1-10; vols. 31-32, 1860-1861 as ser. 4 v. 1-2
Mode of access: Internet
"The volume for 1830 was edited by Jared Sparks; from 1831 to 1842 the work was conducted by J. E. Worcester; from 1843 to 1847 by Francis Bowen, subsequently by G. P. Sanger ..."