• publisher: W. Engelmann
  • creator: Carl Ludwig, Max von Frey, E. Becher , Conrad Rahn, Conrad Rahn-Escher, Hans Conrad Rahn
  • contributor: Harvard University
  • mediatype: texts
  • years: 1890
  • pages: 46
  • language: ger
  • lccn: 03020852
  • notes: Reprints from Mittheilungen der Z眉rch. Naturf. Gesellschaft, 1851, no. 50, 63.
  • download: pdf file