Mineral lands of the United States : message from the president of the United States, in reply to a resolution of the House of Representatives of the 6th of February last, [1839] concerning the mineral lands of the United States
At head of title: 26th Congress, 1st session. House executive document no. 239.
Originally printed, under above series number, without plates, in 1840.
This edition is inserted in the Congressional series in place of House doc. no. 168, 28th Cong., 2nd sess.
This half-title on p. 9 used as title in a revised edition, issued in 1844: Report of a geological exploration of part of Iowa, Wisconsin, and Illinois.