@misc{indiciaec16817f1b752,
  title = {Correspondence : Eichler (August) and Engelmann (George), 1869-1882 — Illustration, Mar 30 / 1880 1},
  year = {1880},
  url = {https://www.biodiversitylibrary.org/page/43373619},
  note = {Source identifier: page-43373619}
}