@misc{indiciae0600565cbf69,
  title = {Correspondence : Weber (Frédéric Albert) and Engelmann (George), 1865-1883 — Illustration, 1868 3 / Apr 06},
  year = {1868},
  url = {https://www.biodiversitylibrary.org/page/44593473},
  note = {Source identifier: page-44593473}
}