Koch, Albert C.  JOURNEY THROUGH A PART OF THE UNITED STATES OF NORTH AMERICA IN THE YEARS 1844-1846. Carbondale: Southern Illinois University Press, 1972. 1st edition. 177 pp., cloth spine, paper-covered boards. Explorations of a paleontologist , first published in Germany in 1847. Translated and edited by Ernst A. Stadler. Very good in dust jacket.