text: He returned to Germany in 1827, and published a tract entitled, “Report on a Journey to the Western States of North America and a Stay of Several Years Along the Missouri (during the years 1824, ‘25, ‘26, and 1827),” first printed in 1829. It praised the virtues of settling in Missouri. Apparently numerous similar tracts circulated in Germany at that time, but Duden’s was especially well known.