David Mack? letter to Governor Levi Lincoln, Jr., 1834 January 4
Edward Hitchcock letter to unidentified recipient, 1834 March 17
Edward Hitchcock title page, "Final Report on the Geology of Massachusetts," 1841
Edward Hitchcock title page, "Final Report on the Geology of Massachusetts: Vol. I," 1841
Edward Hitchcock title page, "Final Report on the Geology of Massachusetts: Vol. II," 1841