@misc{indiciae661576fb8d21,
  title = {Correspondence : Caspary (Robert) and Engelmann (George), 1857-1877 — Illustration, 1868 [3] verso / Jun 6},
  year = {1868},
  url = {https://www.biodiversitylibrary.org/page/42758538},
  note = {Source identifier: page-42758538}
}